40256820

素因数分解:

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

素因数の和:262

約数の個数: 144

約数和(自身を含む): 131040000

約数和(自身を除く): 90783180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 79, 90, 95, 114, 149, 158, 171, 180, 190, 228, 237, 285, 298, 316, 342, 380, 395, 447, 474, 570, 596, 684, 711, 745, 790, 855, 894, 948, 1140, 1185, 1341, 1422, 1490, 1501, 1580, 1710, 1788, 2235, 2370, 2682, 2831, 2844, 2980, 3002, 3420, 3555, 4470, 4503, 4740, 5364, 5662, 6004, 6705, 7110, 7505, 8493, 8940, 9006, 11324, 11771, 13410, 13509, 14155, 14220, 15010, 16986, 18012, 22515, 23542, 25479, 26820, 27018, 28310, 30020, 33972, 35313, 42465, 45030, 47084, 50958, 54036, 56620, 58855, 67545, 70626, 84930, 90060, 101916, 105939, 117710, 127395, 135090, 141252, 169860, 176565, 211878, 223649, 235420, 254790, 270180, 353130, 423756, 447298, 509580, 529695, 670947, 706260, 894596, 1059390, 1118245, 1341894, 2012841, 2118780, 2236490, 2683788, 3354735, 4025682, 4472980, 6709470, 8051364, 10064205, 13418940, 20128410, 40256820]

約数ペア:

[(1, 40256820), (2, 20128410), (3, 13418940), (4, 10064205), (5, 8051364), (6, 6709470), (9, 4472980), (10, 4025682), (12, 3354735), (15, 2683788), (18, 2236490), (19, 2118780), (20, 2012841), (30, 1341894), (36, 1118245), (38, 1059390), (45, 894596), (57, 706260), (60, 670947), (76, 529695), (79, 509580), (90, 447298), (95, 423756), (114, 353130), (149, 270180), (158, 254790), (171, 235420), (180, 223649), (190, 211878), (228, 176565), (237, 169860), (285, 141252), (298, 135090), (316, 127395), (342, 117710), (380, 105939), (395, 101916), (447, 90060), (474, 84930), (570, 70626), (596, 67545), (684, 58855), (711, 56620), (745, 54036), (790, 50958), (855, 47084), (894, 45030), (948, 42465), (1140, 35313), (1185, 33972), (1341, 30020), (1422, 28310), (1490, 27018), (1501, 26820), (1580, 25479), (1710, 23542), (1788, 22515), (2235, 18012), (2370, 16986), (2682, 15010), (2831, 14220), (2844, 14155), (2980, 13509), (3002, 13410), (3420, 11771), (3555, 11324), (4470, 9006), (4503, 8940), (4740, 8493), (5364, 7505), (5662, 7110), (6004, 6705)]