31082120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1063}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 75841920

約数和(自身を除く): 44759800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 43, 68, 85, 86, 136, 170, 172, 215, 340, 344, 430, 680, 731, 860, 1063, 1462, 1720, 2126, 2924, 3655, 4252, 5315, 5848, 7310, 8504, 10630, 14620, 18071, 21260, 29240, 36142, 42520, 45709, 72284, 90355, 91418, 144568, 180710, 182836, 228545, 361420, 365672, 457090, 722840, 777053, 914180, 1554106, 1828360, 3108212, 3885265, 6216424, 7770530, 15541060, 31082120]

約数ペア:

[(1, 31082120), (2, 15541060), (4, 7770530), (5, 6216424), (8, 3885265), (10, 3108212), (17, 1828360), (20, 1554106), (34, 914180), (40, 777053), (43, 722840), (68, 457090), (85, 365672), (86, 361420), (136, 228545), (170, 182836), (172, 180710), (215, 144568), (340, 91418), (344, 90355), (430, 72284), (680, 45709), (731, 42520), (860, 36142), (1063, 29240), (1462, 21260), (1720, 18071), (2126, 14620), (2924, 10630), (3655, 8504), (4252, 7310), (5315, 5848)]