31481320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{4657}}^1$

素因数の和:4694

約数の個数: 48

約数和(自身を含む): 76717260

約数和(自身を除く): 45235940

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 4657, 6760, 9314, 18628, 23285, 37256, 46570, 60541, 93140, 121082, 186280, 242164, 302705, 484328, 605410, 787033, 1210820, 1574066, 2421640, 3148132, 3935165, 6296264, 7870330, 15740660, 31481320]

約数ペア:

[(1, 31481320), (2, 15740660), (4, 7870330), (5, 6296264), (8, 3935165), (10, 3148132), (13, 2421640), (20, 1574066), (26, 1210820), (40, 787033), (52, 605410), (65, 484328), (104, 302705), (130, 242164), (169, 186280), (260, 121082), (338, 93140), (520, 60541), (676, 46570), (845, 37256), (1352, 23285), (1690, 18628), (3380, 9314), (4657, 6760)]