16271125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 64

約数和(自身を含む): 25159680

約数和(自身を除く): 8888555

約数列:

[1, 5, 13, 17, 19, 25, 31, 65, 85, 95, 125, 155, 221, 247, 323, 325, 403, 425, 475, 527, 589, 775, 1105, 1235, 1615, 1625, 2015, 2125, 2375, 2635, 2945, 3875, 4199, 5525, 6175, 6851, 7657, 8075, 10013, 10075, 13175, 14725, 20995, 27625, 30875, 34255, 38285, 40375, 50065, 50375, 65875, 73625, 104975, 130169, 171275, 191425, 250325, 524875, 650845, 856375, 957125, 1251625, 3254225, 16271125]

約数ペア:

[(1, 16271125), (5, 3254225), (13, 1251625), (17, 957125), (19, 856375), (25, 650845), (31, 524875), (65, 250325), (85, 191425), (95, 171275), (125, 130169), (155, 104975), (221, 73625), (247, 65875), (323, 50375), (325, 50065), (403, 40375), (425, 38285), (475, 34255), (527, 30875), (589, 27625), (775, 20995), (1105, 14725), (1235, 13175), (1615, 10075), (1625, 10013), (2015, 8075), (2125, 7657), (2375, 6851), (2635, 6175), (2945, 5525), (3875, 4199)]