20239960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38923}}^1$

素因数の和:38947

約数の個数: 32

約数和(自身を含む): 49044240

約数和(自身を除く): 28804280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38923, 77846, 155692, 194615, 311384, 389230, 505999, 778460, 1011998, 1556920, 2023996, 2529995, 4047992, 5059990, 10119980, 20239960]

約数ペア:

[(1, 20239960), (2, 10119980), (4, 5059990), (5, 4047992), (8, 2529995), (10, 2023996), (13, 1556920), (20, 1011998), (26, 778460), (40, 505999), (52, 389230), (65, 311384), (104, 194615), (130, 155692), (260, 77846), (520, 38923)]