31995880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{499}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 82800000

約数和(自身を除く): 50804120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 229, 280, 458, 499, 916, 998, 1145, 1603, 1832, 1996, 2290, 2495, 3206, 3493, 3992, 4580, 4990, 6412, 6986, 8015, 9160, 9980, 12824, 13972, 16030, 17465, 19960, 27944, 32060, 34930, 64120, 69860, 114271, 139720, 228542, 457084, 571355, 799897, 914168, 1142710, 1599794, 2285420, 3199588, 3999485, 4570840, 6399176, 7998970, 15997940, 31995880]

約数ペア:

[(1, 31995880), (2, 15997940), (4, 7998970), (5, 6399176), (7, 4570840), (8, 3999485), (10, 3199588), (14, 2285420), (20, 1599794), (28, 1142710), (35, 914168), (40, 799897), (56, 571355), (70, 457084), (140, 228542), (229, 139720), (280, 114271), (458, 69860), (499, 64120), (916, 34930), (998, 32060), (1145, 27944), (1603, 19960), (1832, 17465), (1996, 16030), (2290, 13972), (2495, 12824), (3206, 9980), (3493, 9160), (3992, 8015), (4580, 6986), (4990, 6412)]