20251270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 41267232

約数和(自身を除く): 21015962

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 169, 230, 299, 338, 521, 598, 845, 1042, 1495, 1690, 2605, 2990, 3887, 5210, 6773, 7774, 11983, 13546, 19435, 23966, 33865, 38870, 59915, 67730, 88049, 119830, 155779, 176098, 311558, 440245, 778895, 880490, 1557790, 2025127, 4050254, 10125635, 20251270]

約数ペア:

[(1, 20251270), (2, 10125635), (5, 4050254), (10, 2025127), (13, 1557790), (23, 880490), (26, 778895), (46, 440245), (65, 311558), (115, 176098), (130, 155779), (169, 119830), (230, 88049), (299, 67730), (338, 59915), (521, 38870), (598, 33865), (845, 23966), (1042, 19435), (1495, 13546), (1690, 11983), (2605, 7774), (2990, 6773), (3887, 5210)]