18165770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{283}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 38462688

約数和(自身を除く): 20296918

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 131, 245, 262, 283, 490, 566, 655, 917, 1310, 1415, 1834, 1981, 2830, 3962, 4585, 6419, 9170, 9905, 12838, 13867, 19810, 27734, 32095, 37073, 64190, 69335, 74146, 138670, 185365, 259511, 370730, 519022, 1297555, 1816577, 2595110, 3633154, 9082885, 18165770]

約数ペア:

[(1, 18165770), (2, 9082885), (5, 3633154), (7, 2595110), (10, 1816577), (14, 1297555), (35, 519022), (49, 370730), (70, 259511), (98, 185365), (131, 138670), (245, 74146), (262, 69335), (283, 64190), (490, 37073), (566, 32095), (655, 27734), (917, 19810), (1310, 13867), (1415, 12838), (1834, 9905), (1981, 9170), (2830, 6419), (3962, 4585)]