71477840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1171}}^1$

素因数の和:1300

約数の個数: 80

約数和(自身を含む): 191832960

約数和(自身を除く): 120355120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1171, 1526, 1744, 2180, 2342, 3052, 3815, 4360, 4684, 5855, 6104, 7630, 8197, 8720, 9368, 11710, 12208, 15260, 16394, 18736, 23420, 30520, 32788, 40985, 46840, 61040, 65576, 81970, 93680, 127639, 131152, 163940, 255278, 327880, 510556, 638195, 655760, 893473, 1021112, 1276390, 1786946, 2042224, 2552780, 3573892, 4467365, 5105560, 7147784, 8934730, 10211120, 14295568, 17869460, 35738920, 71477840]

約数ペア:

[(1, 71477840), (2, 35738920), (4, 17869460), (5, 14295568), (7, 10211120), (8, 8934730), (10, 7147784), (14, 5105560), (16, 4467365), (20, 3573892), (28, 2552780), (35, 2042224), (40, 1786946), (56, 1276390), (70, 1021112), (80, 893473), (109, 655760), (112, 638195), (140, 510556), (218, 327880), (280, 255278), (436, 163940), (545, 131152), (560, 127639), (763, 93680), (872, 81970), (1090, 65576), (1171, 61040), (1526, 46840), (1744, 40985), (2180, 32788), (2342, 30520), (3052, 23420), (3815, 18736), (4360, 16394), (4684, 15260), (5855, 12208), (6104, 11710), (7630, 9368), (8197, 8720)]