64712960

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3889}}^1$

素因数の和:3923

約数の個数: 72

約数和(自身を含む): 166974360

約数和(自身を除く): 102261400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 3889, 4160, 7778, 8320, 15556, 16640, 19445, 31112, 38890, 50557, 62224, 77780, 101114, 124448, 155560, 202228, 248896, 252785, 311120, 404456, 497792, 505570, 622240, 808912, 995584, 1011140, 1244480, 1617824, 2022280, 2488960, 3235648, 4044560, 4977920, 6471296, 8089120, 12942592, 16178240, 32356480, 64712960]

約数ペア:

[(1, 64712960), (2, 32356480), (4, 16178240), (5, 12942592), (8, 8089120), (10, 6471296), (13, 4977920), (16, 4044560), (20, 3235648), (26, 2488960), (32, 2022280), (40, 1617824), (52, 1244480), (64, 1011140), (65, 995584), (80, 808912), (104, 622240), (128, 505570), (130, 497792), (160, 404456), (208, 311120), (256, 252785), (260, 248896), (320, 202228), (416, 155560), (520, 124448), (640, 101114), (832, 77780), (1040, 62224), (1280, 50557), (1664, 38890), (2080, 31112), (3328, 19445), (3889, 16640), (4160, 15556), (7778, 8320)]