260660920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{501271}}^1$

素因数の和:501295

約数の個数: 32

約数和(自身を含む): 631602720

約数和(自身を除く): 370941800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 501271, 1002542, 2005084, 2506355, 4010168, 5012710, 6516523, 10025420, 13033046, 20050840, 26066092, 32582615, 52132184, 65165230, 130330460, 260660920]

約数ペア:

[(1, 260660920), (2, 130330460), (4, 65165230), (5, 52132184), (8, 32582615), (10, 26066092), (13, 20050840), (20, 13033046), (26, 10025420), (40, 6516523), (52, 5012710), (65, 4010168), (104, 2506355), (130, 2005084), (260, 1002542), (520, 501271)]