281797740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:269

約数の個数: 288

約数和(自身を含む): 1048320000

約数和(自身を除く): 766522260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 79, 84, 90, 95, 105, 114, 126, 133, 140, 149, 158, 171, 180, 190, 210, 228, 237, 252, 266, 285, 298, 315, 316, 342, 380, 395, 399, 420, 447, 474, 532, 553, 570, 596, 630, 665, 684, 711, 745, 790, 798, 855, 894, 948, 1043, 1106, 1140, 1185, 1197, 1260, 1330, 1341, 1422, 1490, 1501, 1580, 1596, 1659, 1710, 1788, 1995, 2086, 2212, 2235, 2370, 2394, 2660, 2682, 2765, 2831, 2844, 2980, 3002, 3129, 3318, 3420, 3555, 3990, 4172, 4470, 4503, 4740, 4788, 4977, 5215, 5364, 5530, 5662, 5985, 6004, 6258, 6636, 6705, 7110, 7505, 7980, 8295, 8493, 8940, 9006, 9387, 9954, 10430, 10507, 11060, 11324, 11771, 11970, 12516, 13410, 13509, 14155, 14220, 15010, 15645, 16590, 16986, 18012, 18774, 19817, 19908, 20860, 21014, 22515, 23542, 23940, 24885, 25479, 26820, 27018, 28310, 30020, 31290, 31521, 33180, 33972, 35313, 37548, 39634, 42028, 42465, 45030, 46935, 47084, 49770, 50958, 52535, 54036, 56620, 58855, 59451, 62580, 63042, 67545, 70626, 79268, 82397, 84930, 90060, 93870, 94563, 99085, 99540, 101916, 105070, 105939, 117710, 118902, 126084, 127395, 135090, 141252, 157605, 164794, 169860, 176565, 178353, 187740, 189126, 198170, 210140, 211878, 223649, 235420, 237804, 247191, 254790, 270180, 297255, 315210, 329588, 353130, 356706, 378252, 396340, 411985, 423756, 447298, 472815, 494382, 509580, 529695, 594510, 630420, 670947, 706260, 713412, 741573, 823970, 891765, 894596, 945630, 988764, 1059390, 1118245, 1189020, 1235955, 1341894, 1483146, 1565543, 1647940, 1783530, 1891260, 2012841, 2118780, 2236490, 2471910, 2683788, 2966292, 3131086, 3354735, 3567060, 3707865, 4025682, 4472980, 4696629, 4943820, 6262172, 6709470, 7415730, 7827715, 8051364, 9393258, 10064205, 13418940, 14089887, 14831460, 15655430, 18786516, 20128410, 23483145, 28179774, 31310860, 40256820, 46966290, 56359548, 70449435, 93932580, 140898870, 281797740]

約数ペア:

[(1, 281797740), (2, 140898870), (3, 93932580), (4, 70449435), (5, 56359548), (6, 46966290), (7, 40256820), (9, 31310860), (10, 28179774), (12, 23483145), (14, 20128410), (15, 18786516), (18, 15655430), (19, 14831460), (20, 14089887), (21, 13418940), (28, 10064205), (30, 9393258), (35, 8051364), (36, 7827715), (38, 7415730), (42, 6709470), (45, 6262172), (57, 4943820), (60, 4696629), (63, 4472980), (70, 4025682), (76, 3707865), (79, 3567060), (84, 3354735), (90, 3131086), (95, 2966292), (105, 2683788), (114, 2471910), (126, 2236490), (133, 2118780), (140, 2012841), (149, 1891260), (158, 1783530), (171, 1647940), (180, 1565543), (190, 1483146), (210, 1341894), (228, 1235955), (237, 1189020), (252, 1118245), (266, 1059390), (285, 988764), (298, 945630), (315, 894596), (316, 891765), (342, 823970), (380, 741573), (395, 713412), (399, 706260), (420, 670947), (447, 630420), (474, 594510), (532, 529695), (553, 509580), (570, 494382), (596, 472815), (630, 447298), (665, 423756), (684, 411985), (711, 396340), (745, 378252), (790, 356706), (798, 353130), (855, 329588), (894, 315210), (948, 297255), (1043, 270180), (1106, 254790), (1140, 247191), (1185, 237804), (1197, 235420), (1260, 223649), (1330, 211878), (1341, 210140), (1422, 198170), (1490, 189126), (1501, 187740), (1580, 178353), (1596, 176565), (1659, 169860), (1710, 164794), (1788, 157605), (1995, 141252), (2086, 135090), (2212, 127395), (2235, 126084), (2370, 118902), (2394, 117710), (2660, 105939), (2682, 105070), (2765, 101916), (2831, 99540), (2844, 99085), (2980, 94563), (3002, 93870), (3129, 90060), (3318, 84930), (3420, 82397), (3555, 79268), (3990, 70626), (4172, 67545), (4470, 63042), (4503, 62580), (4740, 59451), (4788, 58855), (4977, 56620), (5215, 54036), (5364, 52535), (5530, 50958), (5662, 49770), (5985, 47084), (6004, 46935), (6258, 45030), (6636, 42465), (6705, 42028), (7110, 39634), (7505, 37548), (7980, 35313), (8295, 33972), (8493, 33180), (8940, 31521), (9006, 31290), (9387, 30020), (9954, 28310), (10430, 27018), (10507, 26820), (11060, 25479), (11324, 24885), (11771, 23940), (11970, 23542), (12516, 22515), (13410, 21014), (13509, 20860), (14155, 19908), (14220, 19817), (15010, 18774), (15645, 18012), (16590, 16986)]