64974760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{859}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 153561600

約数和(自身を除く): 88586840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 859, 1220, 1240, 1718, 1891, 2440, 3436, 3782, 4295, 6872, 7564, 8590, 9455, 15128, 17180, 18910, 26629, 34360, 37820, 52399, 53258, 75640, 104798, 106516, 133145, 209596, 213032, 261995, 266290, 419192, 523990, 532580, 1047980, 1065160, 1624369, 2095960, 3248738, 6497476, 8121845, 12994952, 16243690, 32487380, 64974760]

約数ペア:

[(1, 64974760), (2, 32487380), (4, 16243690), (5, 12994952), (8, 8121845), (10, 6497476), (20, 3248738), (31, 2095960), (40, 1624369), (61, 1065160), (62, 1047980), (122, 532580), (124, 523990), (155, 419192), (244, 266290), (248, 261995), (305, 213032), (310, 209596), (488, 133145), (610, 106516), (620, 104798), (859, 75640), (1220, 53258), (1240, 52399), (1718, 37820), (1891, 34360), (2440, 26629), (3436, 18910), (3782, 17180), (4295, 15128), (6872, 9455), (7564, 8590)]