31693160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 74995200

約数和(自身を除く): 43302040

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 419, 488, 610, 620, 838, 1220, 1240, 1676, 1891, 2095, 2440, 3352, 3782, 4190, 7564, 8380, 9455, 12989, 15128, 16760, 18910, 25559, 25978, 37820, 51118, 51956, 64945, 75640, 102236, 103912, 127795, 129890, 204472, 255590, 259780, 511180, 519560, 792329, 1022360, 1584658, 3169316, 3961645, 6338632, 7923290, 15846580, 31693160]

約数ペア:

[(1, 31693160), (2, 15846580), (4, 7923290), (5, 6338632), (8, 3961645), (10, 3169316), (20, 1584658), (31, 1022360), (40, 792329), (61, 519560), (62, 511180), (122, 259780), (124, 255590), (155, 204472), (244, 129890), (248, 127795), (305, 103912), (310, 102236), (419, 75640), (488, 64945), (610, 51956), (620, 51118), (838, 37820), (1220, 25978), (1240, 25559), (1676, 18910), (1891, 16760), (2095, 15128), (2440, 12989), (3352, 9455), (3782, 8380), (4190, 7564)]