2220920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4271}}^1$

素因数の和:4295

約数の個数: 32

約数和(自身を含む): 5382720

約数和(自身を除く): 3161800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4271, 8542, 17084, 21355, 34168, 42710, 55523, 85420, 111046, 170840, 222092, 277615, 444184, 555230, 1110460, 2220920]

約数ペア:

[(1, 2220920), (2, 1110460), (4, 555230), (5, 444184), (8, 277615), (10, 222092), (13, 170840), (20, 111046), (26, 85420), (40, 55523), (52, 42710), (65, 34168), (104, 21355), (130, 17084), (260, 8542), (520, 4271)]