31044040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 75116160

約数和(自身を除く): 44072120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 568, 643, 680, 710, 1207, 1286, 1420, 2414, 2572, 2840, 3215, 4828, 5144, 6035, 6430, 9656, 10931, 12070, 12860, 21862, 24140, 25720, 43724, 45653, 48280, 54655, 87448, 91306, 109310, 182612, 218620, 228265, 365224, 437240, 456530, 776101, 913060, 1552202, 1826120, 3104404, 3880505, 6208808, 7761010, 15522020, 31044040]

約数ペア:

[(1, 31044040), (2, 15522020), (4, 7761010), (5, 6208808), (8, 3880505), (10, 3104404), (17, 1826120), (20, 1552202), (34, 913060), (40, 776101), (68, 456530), (71, 437240), (85, 365224), (136, 228265), (142, 218620), (170, 182612), (284, 109310), (340, 91306), (355, 87448), (568, 54655), (643, 48280), (680, 45653), (710, 43724), (1207, 25720), (1286, 24140), (1420, 21862), (2414, 12860), (2572, 12070), (2840, 10931), (3215, 9656), (4828, 6430), (5144, 6035)]