31352020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{937}}^1$

素因数の和:1192

約数の個数: 48

約数和(自身を含む): 75640320

約数和(自身を除く): 44288300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 937, 956, 1195, 1673, 1874, 2390, 3346, 3748, 4685, 4780, 6559, 6692, 8365, 9370, 13118, 16730, 18740, 26236, 32795, 33460, 65590, 131180, 223943, 447886, 895772, 1119715, 1567601, 2239430, 3135202, 4478860, 6270404, 7838005, 15676010, 31352020]

約数ペア:

[(1, 31352020), (2, 15676010), (4, 7838005), (5, 6270404), (7, 4478860), (10, 3135202), (14, 2239430), (20, 1567601), (28, 1119715), (35, 895772), (70, 447886), (140, 223943), (239, 131180), (478, 65590), (937, 33460), (956, 32795), (1195, 26236), (1673, 18740), (1874, 16730), (2390, 13118), (3346, 9370), (3748, 8365), (4685, 6692), (4780, 6559)]