40213640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16481}}^1$

素因数の和:16553

約数の個数: 32

約数和(自身を含む): 91969560

約数和(自身を除く): 51755920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16481, 32962, 65924, 82405, 131848, 164810, 329620, 659240, 1005341, 2010682, 4021364, 5026705, 8042728, 10053410, 20106820, 40213640]

約数ペア:

[(1, 40213640), (2, 20106820), (4, 10053410), (5, 8042728), (8, 5026705), (10, 4021364), (20, 2010682), (40, 1005341), (61, 659240), (122, 329620), (244, 164810), (305, 131848), (488, 82405), (610, 65924), (1220, 32962), (2440, 16481)]