25198280

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{1021}}^1$

素因数の和:1649

約数の個数: 32

約数和(自身を含む): 56843640

約数和(自身を除く): 31645360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1021, 1234, 2042, 2468, 3085, 4084, 4936, 5105, 6170, 8168, 10210, 12340, 20420, 24680, 40840, 629957, 1259914, 2519828, 3149785, 5039656, 6299570, 12599140, 25198280]

約数ペア:

[(1, 25198280), (2, 12599140), (4, 6299570), (5, 5039656), (8, 3149785), (10, 2519828), (20, 1259914), (40, 629957), (617, 40840), (1021, 24680), (1234, 20420), (2042, 12340), (2468, 10210), (3085, 8168), (4084, 6170), (4936, 5105)]