649004889040

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1637}}^1\times {\mathrm{62731}}^1$

素因数の和:64460

約数の個数: 80

約数和(自身を含む): 1528994638080

約数和(自身を除く): 879989749040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 1637, 3160, 3274, 6320, 6548, 8185, 13096, 16370, 26192, 32740, 62731, 65480, 125462, 129323, 130960, 250924, 258646, 313655, 501848, 517292, 627310, 646615, 1003696, 1034584, 1254620, 1293230, 2069168, 2509240, 2586460, 4955749, 5018480, 5172920, 9911498, 10345840, 19822996, 24778745, 39645992, 49557490, 79291984, 99114980, 102690647, 198229960, 205381294, 396459920, 410762588, 513453235, 821525176, 1026906470, 1643050352, 2053812940, 4107625880, 8112561113, 8215251760, 16225122226, 32450244452, 40562805565, 64900488904, 81125611130, 129800977808, 162251222260, 324502444520, 649004889040]

約数ペア:

[(1, 649004889040), (2, 324502444520), (4, 162251222260), (5, 129800977808), (8, 81125611130), (10, 64900488904), (16, 40562805565), (20, 32450244452), (40, 16225122226), (79, 8215251760), (80, 8112561113), (158, 4107625880), (316, 2053812940), (395, 1643050352), (632, 1026906470), (790, 821525176), (1264, 513453235), (1580, 410762588), (1637, 396459920), (3160, 205381294), (3274, 198229960), (6320, 102690647), (6548, 99114980), (8185, 79291984), (13096, 49557490), (16370, 39645992), (26192, 24778745), (32740, 19822996), (62731, 10345840), (65480, 9911498), (125462, 5172920), (129323, 5018480), (130960, 4955749), (250924, 2586460), (258646, 2509240), (313655, 2069168), (501848, 1293230), (517292, 1254620), (627310, 1034584), (646615, 1003696)]