31100715

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 56908800

約数和(自身を除く): 25808085

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 151, 199, 207, 345, 453, 597, 755, 995, 1035, 1359, 1791, 2265, 2985, 3473, 4577, 6795, 8955, 10419, 13731, 17365, 22885, 30049, 31257, 41193, 52095, 68655, 90147, 150245, 156285, 205965, 270441, 450735, 691127, 1352205, 2073381, 3455635, 6220143, 10366905, 31100715]

約数ペア:

[(1, 31100715), (3, 10366905), (5, 6220143), (9, 3455635), (15, 2073381), (23, 1352205), (45, 691127), (69, 450735), (115, 270441), (151, 205965), (199, 156285), (207, 150245), (345, 90147), (453, 68655), (597, 52095), (755, 41193), (995, 31257), (1035, 30049), (1359, 22885), (1791, 17365), (2265, 13731), (2985, 10419), (3473, 8955), (4577, 6795)]