40479920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38923}}^1$

素因数の和:38949

約数の個数: 40

約数和(自身を含む): 101358096

約数和(自身を除く): 60878176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 38923, 77846, 155692, 194615, 311384, 389230, 505999, 622768, 778460, 1011998, 1556920, 2023996, 2529995, 3113840, 4047992, 5059990, 8095984, 10119980, 20239960, 40479920]

約数ペア:

[(1, 40479920), (2, 20239960), (4, 10119980), (5, 8095984), (8, 5059990), (10, 4047992), (13, 3113840), (16, 2529995), (20, 2023996), (26, 1556920), (40, 1011998), (52, 778460), (65, 622768), (80, 505999), (104, 389230), (130, 311384), (208, 194615), (260, 155692), (520, 77846), (1040, 38923)]