648886420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{53}}^1$

素因数の和:151

約数の個数: 216

約数和(自身を含む): 1797194952

約数和(自身を除く): 1148308532

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 53, 62, 65, 70, 91, 98, 106, 124, 130, 140, 155, 182, 196, 212, 217, 245, 260, 265, 310, 364, 371, 403, 434, 455, 490, 530, 620, 637, 689, 742, 806, 868, 910, 961, 980, 1060, 1085, 1274, 1378, 1484, 1519, 1612, 1643, 1820, 1855, 1922, 2015, 2170, 2548, 2597, 2756, 2821, 3038, 3185, 3286, 3445, 3710, 3844, 4030, 4340, 4805, 4823, 5194, 5642, 6076, 6370, 6572, 6727, 6890, 7420, 7595, 8060, 8215, 9610, 9646, 10388, 11284, 11501, 12493, 12740, 12985, 13454, 13780, 14105, 15190, 16430, 19220, 19292, 19747, 21359, 23002, 24115, 24986, 25970, 26908, 28210, 30380, 32860, 33635, 33761, 39494, 42718, 46004, 47089, 48230, 49972, 50933, 51940, 56420, 57505, 62465, 67270, 67522, 78988, 80507, 85436, 87451, 94178, 96460, 98735, 101866, 106795, 115010, 124930, 134540, 135044, 149513, 161014, 168805, 174902, 188356, 197470, 203732, 213590, 230020, 235445, 249860, 254665, 299026, 322028, 337610, 349804, 356531, 394940, 402535, 427180, 437255, 470890, 509330, 598052, 612157, 662129, 675220, 713062, 747565, 805070, 874510, 941780, 1018660, 1046591, 1224314, 1324258, 1426124, 1495130, 1610140, 1749020, 1782655, 2093182, 2448628, 2495717, 2648516, 2990260, 3060785, 3310645, 3565310, 4186364, 4634903, 4991434, 5232955, 6121570, 6621290, 7130620, 9269806, 9982868, 10465910, 12243140, 12478585, 13242580, 18539612, 20931820, 23174515, 24957170, 32444321, 46349030, 49914340, 64888642, 92698060, 129777284, 162221605, 324443210, 648886420]

約数ペア:

[(1, 648886420), (2, 324443210), (4, 162221605), (5, 129777284), (7, 92698060), (10, 64888642), (13, 49914340), (14, 46349030), (20, 32444321), (26, 24957170), (28, 23174515), (31, 20931820), (35, 18539612), (49, 13242580), (52, 12478585), (53, 12243140), (62, 10465910), (65, 9982868), (70, 9269806), (91, 7130620), (98, 6621290), (106, 6121570), (124, 5232955), (130, 4991434), (140, 4634903), (155, 4186364), (182, 3565310), (196, 3310645), (212, 3060785), (217, 2990260), (245, 2648516), (260, 2495717), (265, 2448628), (310, 2093182), (364, 1782655), (371, 1749020), (403, 1610140), (434, 1495130), (455, 1426124), (490, 1324258), (530, 1224314), (620, 1046591), (637, 1018660), (689, 941780), (742, 874510), (806, 805070), (868, 747565), (910, 713062), (961, 675220), (980, 662129), (1060, 612157), (1085, 598052), (1274, 509330), (1378, 470890), (1484, 437255), (1519, 427180), (1612, 402535), (1643, 394940), (1820, 356531), (1855, 349804), (1922, 337610), (2015, 322028), (2170, 299026), (2548, 254665), (2597, 249860), (2756, 235445), (2821, 230020), (3038, 213590), (3185, 203732), (3286, 197470), (3445, 188356), (3710, 174902), (3844, 168805), (4030, 161014), (4340, 149513), (4805, 135044), (4823, 134540), (5194, 124930), (5642, 115010), (6076, 106795), (6370, 101866), (6572, 98735), (6727, 96460), (6890, 94178), (7420, 87451), (7595, 85436), (8060, 80507), (8215, 78988), (9610, 67522), (9646, 67270), (10388, 62465), (11284, 57505), (11501, 56420), (12493, 51940), (12740, 50933), (12985, 49972), (13454, 48230), (13780, 47089), (14105, 46004), (15190, 42718), (16430, 39494), (19220, 33761), (19292, 33635), (19747, 32860), (21359, 30380), (23002, 28210), (24115, 26908), (24986, 25970)]