31172440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{397}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 76224960

約数和(自身を除く): 45052520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 397, 520, 604, 755, 794, 1208, 1510, 1588, 1963, 1985, 3020, 3176, 3926, 3970, 5161, 6040, 7852, 7940, 9815, 10322, 15704, 15880, 19630, 20644, 25805, 39260, 41288, 51610, 59947, 78520, 103220, 119894, 206440, 239788, 299735, 479576, 599470, 779311, 1198940, 1558622, 2397880, 3117244, 3896555, 6234488, 7793110, 15586220, 31172440]

約数ペア:

[(1, 31172440), (2, 15586220), (4, 7793110), (5, 6234488), (8, 3896555), (10, 3117244), (13, 2397880), (20, 1558622), (26, 1198940), (40, 779311), (52, 599470), (65, 479576), (104, 299735), (130, 239788), (151, 206440), (260, 119894), (302, 103220), (397, 78520), (520, 59947), (604, 51610), (755, 41288), (794, 39260), (1208, 25805), (1510, 20644), (1588, 19630), (1963, 15880), (1985, 15704), (3020, 10322), (3176, 9815), (3926, 7940), (3970, 7852), (5161, 6040)]