25122020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1483}}^1$

素因数の和:1521

約数の個数: 72

約数和(自身を含む): 66316992

約数和(自身を除く): 41194972

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1483, 1540, 1694, 2420, 2966, 3388, 4235, 5932, 7415, 8470, 10381, 14830, 16313, 16940, 20762, 29660, 32626, 41524, 51905, 65252, 81565, 103810, 114191, 163130, 179443, 207620, 228382, 326260, 358886, 456764, 570955, 717772, 897215, 1141910, 1256101, 1794430, 2283820, 2512202, 3588860, 5024404, 6280505, 12561010, 25122020]

約数ペア:

[(1, 25122020), (2, 12561010), (4, 6280505), (5, 5024404), (7, 3588860), (10, 2512202), (11, 2283820), (14, 1794430), (20, 1256101), (22, 1141910), (28, 897215), (35, 717772), (44, 570955), (55, 456764), (70, 358886), (77, 326260), (110, 228382), (121, 207620), (140, 179443), (154, 163130), (220, 114191), (242, 103810), (308, 81565), (385, 65252), (484, 51905), (605, 41524), (770, 32626), (847, 29660), (1210, 20762), (1483, 16940), (1540, 16313), (1694, 14830), (2420, 10381), (2966, 8470), (3388, 7415), (4235, 5932)]