1261573520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{1657}}^1$

素因数の和:2008

約数の個数: 80

約数和(自身を含む): 3039472128

約数和(自身を除く): 1777898608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 307, 310, 496, 614, 620, 1228, 1240, 1535, 1657, 2456, 2480, 3070, 3314, 4912, 6140, 6628, 8285, 9517, 12280, 13256, 16570, 19034, 24560, 26512, 33140, 38068, 47585, 51367, 66280, 76136, 95170, 102734, 132560, 152272, 190340, 205468, 256835, 380680, 410936, 508699, 513670, 761360, 821872, 1017398, 1027340, 2034796, 2054680, 2543495, 4069592, 4109360, 5086990, 8139184, 10173980, 15769669, 20347960, 31539338, 40695920, 63078676, 78848345, 126157352, 157696690, 252314704, 315393380, 630786760, 1261573520]

約数ペア:

[(1, 1261573520), (2, 630786760), (4, 315393380), (5, 252314704), (8, 157696690), (10, 126157352), (16, 78848345), (20, 63078676), (31, 40695920), (40, 31539338), (62, 20347960), (80, 15769669), (124, 10173980), (155, 8139184), (248, 5086990), (307, 4109360), (310, 4069592), (496, 2543495), (614, 2054680), (620, 2034796), (1228, 1027340), (1240, 1017398), (1535, 821872), (1657, 761360), (2456, 513670), (2480, 508699), (3070, 410936), (3314, 380680), (4912, 256835), (6140, 205468), (6628, 190340), (8285, 152272), (9517, 132560), (12280, 102734), (13256, 95170), (16570, 76136), (19034, 66280), (24560, 51367), (26512, 47585), (33140, 38068)]