31031325

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{103}}^2$

素因数の和:235

約数の個数: 54

約数和(自身を含む): 60442746

約数和(自身を除く): 29411421

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 103, 117, 195, 225, 309, 325, 515, 585, 927, 975, 1339, 1545, 2575, 2925, 4017, 4635, 6695, 7725, 10609, 12051, 20085, 23175, 31827, 33475, 53045, 60255, 95481, 100425, 137917, 159135, 265225, 301275, 413751, 477405, 689585, 795675, 1241253, 2068755, 2387025, 3447925, 6206265, 10343775, 31031325]

約数ペア:

[(1, 31031325), (3, 10343775), (5, 6206265), (9, 3447925), (13, 2387025), (15, 2068755), (25, 1241253), (39, 795675), (45, 689585), (65, 477405), (75, 413751), (103, 301275), (117, 265225), (195, 159135), (225, 137917), (309, 100425), (325, 95481), (515, 60255), (585, 53045), (927, 33475), (975, 31827), (1339, 23175), (1545, 20085), (2575, 12051), (2925, 10609), (4017, 7725), (4635, 6695)]