64712520

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19973}}^1$

素因数の和:19996

約数の個数: 80

約数和(自身を含む): 217516860

約数和(自身を除く): 152804340

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 19973, 39946, 59919, 79892, 99865, 119838, 159784, 179757, 199730, 239676, 299595, 359514, 399460, 479352, 539271, 599190, 719028, 798920, 898785, 1078542, 1198380, 1438056, 1617813, 1797570, 2157084, 2396760, 2696355, 3235626, 3595140, 4314168, 5392710, 6471252, 7190280, 8089065, 10785420, 12942504, 16178130, 21570840, 32356260, 64712520]

約数ペア:

[(1, 64712520), (2, 32356260), (3, 21570840), (4, 16178130), (5, 12942504), (6, 10785420), (8, 8089065), (9, 7190280), (10, 6471252), (12, 5392710), (15, 4314168), (18, 3595140), (20, 3235626), (24, 2696355), (27, 2396760), (30, 2157084), (36, 1797570), (40, 1617813), (45, 1438056), (54, 1198380), (60, 1078542), (72, 898785), (81, 798920), (90, 719028), (108, 599190), (120, 539271), (135, 479352), (162, 399460), (180, 359514), (216, 299595), (270, 239676), (324, 199730), (360, 179757), (405, 159784), (540, 119838), (648, 99865), (810, 79892), (1080, 59919), (1620, 39946), (3240, 19973)]