25416440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2172

約数の個数: 64

約数和(自身を含む): 66908160

約数和(自身を除く): 41491720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2111, 2408, 3010, 4222, 6020, 8444, 10555, 12040, 14777, 16888, 21110, 29554, 42220, 59108, 73885, 84440, 90773, 118216, 147770, 181546, 295540, 363092, 453865, 591080, 635411, 726184, 907730, 1270822, 1815460, 2541644, 3177055, 3630920, 5083288, 6354110, 12708220, 25416440]

約数ペア:

[(1, 25416440), (2, 12708220), (4, 6354110), (5, 5083288), (7, 3630920), (8, 3177055), (10, 2541644), (14, 1815460), (20, 1270822), (28, 907730), (35, 726184), (40, 635411), (43, 591080), (56, 453865), (70, 363092), (86, 295540), (140, 181546), (172, 147770), (215, 118216), (280, 90773), (301, 84440), (344, 73885), (430, 59108), (602, 42220), (860, 29554), (1204, 21110), (1505, 16888), (1720, 14777), (2111, 12040), (2408, 10555), (3010, 8444), (4222, 6020)]