25148920

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1019}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 56732400

約数和(自身を除く): 31583480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1019, 1234, 2038, 2468, 3085, 4076, 4936, 5095, 6170, 8152, 10190, 12340, 20380, 24680, 40760, 628723, 1257446, 2514892, 3143615, 5029784, 6287230, 12574460, 25148920]

約数ペア:

[(1, 25148920), (2, 12574460), (4, 6287230), (5, 5029784), (8, 3143615), (10, 2514892), (20, 1257446), (40, 628723), (617, 40760), (1019, 24680), (1234, 20380), (2038, 12340), (2468, 10190), (3085, 8152), (4076, 6170), (4936, 5095)]