20041725

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1429}}^1$

素因数の和:1470

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 18259395

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 1429, 2805, 4287, 4675, 7145, 14025, 15719, 21435, 24293, 35725, 47157, 72879, 78595, 107175, 121465, 235785, 267223, 364395, 392975, 607325, 801669, 1178925, 1336115, 1821975, 4008345, 6680575, 20041725]

約数ペア:

[(1, 20041725), (3, 6680575), (5, 4008345), (11, 1821975), (15, 1336115), (17, 1178925), (25, 801669), (33, 607325), (51, 392975), (55, 364395), (75, 267223), (85, 235785), (165, 121465), (187, 107175), (255, 78595), (275, 72879), (425, 47157), (561, 35725), (825, 24293), (935, 21435), (1275, 15719), (1429, 14025), (2805, 7145), (4287, 4675)]