15678936920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1\times {\mathrm{14221}}^1$

素因数の和:14916

約数の個数: 64

約数和(自身を含む): 36156875040

約数和(自身を除く): 20477938120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 641, 860, 1282, 1720, 2564, 3205, 5128, 6410, 12820, 14221, 25640, 27563, 28442, 55126, 56884, 71105, 110252, 113768, 137815, 142210, 220504, 275630, 284420, 551260, 568840, 611503, 1102520, 1223006, 2446012, 3057515, 4892024, 6115030, 9115661, 12230060, 18231322, 24460120, 36462644, 45578305, 72925288, 91156610, 182313220, 364626440, 391973423, 783946846, 1567893692, 1959867115, 3135787384, 3919734230, 7839468460, 15678936920]

約数ペア:

[(1, 15678936920), (2, 7839468460), (4, 3919734230), (5, 3135787384), (8, 1959867115), (10, 1567893692), (20, 783946846), (40, 391973423), (43, 364626440), (86, 182313220), (172, 91156610), (215, 72925288), (344, 45578305), (430, 36462644), (641, 24460120), (860, 18231322), (1282, 12230060), (1720, 9115661), (2564, 6115030), (3205, 4892024), (5128, 3057515), (6410, 2446012), (12820, 1223006), (14221, 1102520), (25640, 611503), (27563, 568840), (28442, 551260), (55126, 284420), (56884, 275630), (71105, 220504), (110252, 142210), (113768, 137815)]