25420460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97771}}^1$

素因数の和:97793

約数の個数: 24

約数和(自身を含む): 57489936

約数和(自身を除く): 32069476

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 97771, 195542, 391084, 488855, 977710, 1271023, 1955420, 2542046, 5084092, 6355115, 12710230, 25420460]

約数ペア:

[(1, 25420460), (2, 12710230), (4, 6355115), (5, 5084092), (10, 2542046), (13, 1955420), (20, 1271023), (26, 977710), (52, 488855), (65, 391084), (130, 195542), (260, 97771)]