311925720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1181}}^1$

素因数の和:1297

約数の個数: 128

約数和(自身を含む): 980398080

約数和(自身を除く): 668472360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 71, 93, 120, 124, 142, 155, 186, 213, 248, 284, 310, 355, 372, 426, 465, 568, 620, 710, 744, 852, 930, 1065, 1181, 1240, 1420, 1704, 1860, 2130, 2201, 2362, 2840, 3543, 3720, 4260, 4402, 4724, 5905, 6603, 7086, 8520, 8804, 9448, 11005, 11810, 13206, 14172, 17608, 17715, 22010, 23620, 26412, 28344, 33015, 35430, 36611, 44020, 47240, 52824, 66030, 70860, 73222, 83851, 88040, 109833, 132060, 141720, 146444, 167702, 183055, 219666, 251553, 264120, 292888, 335404, 366110, 419255, 439332, 503106, 549165, 670808, 732220, 838510, 878664, 1006212, 1098330, 1257765, 1464440, 1677020, 2012424, 2196660, 2515530, 2599381, 3354040, 4393320, 5031060, 5198762, 7798143, 10062120, 10397524, 12996905, 15596286, 20795048, 25993810, 31192572, 38990715, 51987620, 62385144, 77981430, 103975240, 155962860, 311925720]

約数ペア:

[(1, 311925720), (2, 155962860), (3, 103975240), (4, 77981430), (5, 62385144), (6, 51987620), (8, 38990715), (10, 31192572), (12, 25993810), (15, 20795048), (20, 15596286), (24, 12996905), (30, 10397524), (31, 10062120), (40, 7798143), (60, 5198762), (62, 5031060), (71, 4393320), (93, 3354040), (120, 2599381), (124, 2515530), (142, 2196660), (155, 2012424), (186, 1677020), (213, 1464440), (248, 1257765), (284, 1098330), (310, 1006212), (355, 878664), (372, 838510), (426, 732220), (465, 670808), (568, 549165), (620, 503106), (710, 439332), (744, 419255), (852, 366110), (930, 335404), (1065, 292888), (1181, 264120), (1240, 251553), (1420, 219666), (1704, 183055), (1860, 167702), (2130, 146444), (2201, 141720), (2362, 132060), (2840, 109833), (3543, 88040), (3720, 83851), (4260, 73222), (4402, 70860), (4724, 66030), (5905, 52824), (6603, 47240), (7086, 44020), (8520, 36611), (8804, 35430), (9448, 33015), (11005, 28344), (11810, 26412), (13206, 23620), (14172, 22010), (17608, 17715)]