64942520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 152893440

約数和(自身を除く): 87950920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 83, 124, 155, 166, 248, 310, 332, 415, 620, 631, 664, 830, 1240, 1262, 1660, 2524, 2573, 3155, 3320, 5048, 5146, 6310, 10292, 12620, 12865, 19561, 20584, 25240, 25730, 39122, 51460, 52373, 78244, 97805, 102920, 104746, 156488, 195610, 209492, 261865, 391220, 418984, 523730, 782440, 1047460, 1623563, 2094920, 3247126, 6494252, 8117815, 12988504, 16235630, 32471260, 64942520]

約数ペア:

[(1, 64942520), (2, 32471260), (4, 16235630), (5, 12988504), (8, 8117815), (10, 6494252), (20, 3247126), (31, 2094920), (40, 1623563), (62, 1047460), (83, 782440), (124, 523730), (155, 418984), (166, 391220), (248, 261865), (310, 209492), (332, 195610), (415, 156488), (620, 104746), (631, 102920), (664, 97805), (830, 78244), (1240, 52373), (1262, 51460), (1660, 39122), (2524, 25730), (2573, 25240), (3155, 20584), (3320, 19561), (5048, 12865), (5146, 12620), (6310, 10292)]