77089840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1237}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 193425120

約数和(自身を除く): 116335280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 41, 76, 80, 82, 95, 152, 164, 190, 205, 304, 328, 380, 410, 656, 760, 779, 820, 1237, 1520, 1558, 1640, 2474, 3116, 3280, 3895, 4948, 6185, 6232, 7790, 9896, 12370, 12464, 15580, 19792, 23503, 24740, 31160, 47006, 49480, 50717, 62320, 94012, 98960, 101434, 117515, 188024, 202868, 235030, 253585, 376048, 405736, 470060, 507170, 811472, 940120, 963623, 1014340, 1880240, 1927246, 2028680, 3854492, 4057360, 4818115, 7708984, 9636230, 15417968, 19272460, 38544920, 77089840]

約数ペア:

[(1, 77089840), (2, 38544920), (4, 19272460), (5, 15417968), (8, 9636230), (10, 7708984), (16, 4818115), (19, 4057360), (20, 3854492), (38, 2028680), (40, 1927246), (41, 1880240), (76, 1014340), (80, 963623), (82, 940120), (95, 811472), (152, 507170), (164, 470060), (190, 405736), (205, 376048), (304, 253585), (328, 235030), (380, 202868), (410, 188024), (656, 117515), (760, 101434), (779, 98960), (820, 94012), (1237, 62320), (1520, 50717), (1558, 49480), (1640, 47006), (2474, 31160), (3116, 24740), (3280, 23503), (3895, 19792), (4948, 15580), (6185, 12464), (6232, 12370), (7790, 9896)]