20170912

素因数分解:

$2^5\times {\mathrm{79}}^2\times {\mathrm{101}}^1$

素因数の和:269

約数の個数: 36

約数和(自身を含む): 40618746

約数和(自身を除く): 20447834

約数列:

[1, 2, 4, 8, 16, 32, 79, 101, 158, 202, 316, 404, 632, 808, 1264, 1616, 2528, 3232, 6241, 7979, 12482, 15958, 24964, 31916, 49928, 63832, 99856, 127664, 199712, 255328, 630341, 1260682, 2521364, 5042728, 10085456, 20170912]

約数ペア:

[(1, 20170912), (2, 10085456), (4, 5042728), (8, 2521364), (16, 1260682), (32, 630341), (79, 255328), (101, 199712), (158, 127664), (202, 99856), (316, 63832), (404, 49928), (632, 31916), (808, 24964), (1264, 15958), (1616, 12482), (2528, 7979), (3232, 6241)]