1620228740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{34429}}^1$

素因数の和:34632

約数の個数: 48

約数和(自身を含む): 3684560880

約数和(自身を除く): 2064332140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1810, 2353, 3620, 4706, 9412, 11765, 23530, 34429, 47060, 68858, 137716, 172145, 344290, 447577, 688580, 895154, 1790308, 2237885, 4475770, 6231649, 8951540, 12463298, 24926596, 31158245, 62316490, 81011437, 124632980, 162022874, 324045748, 405057185, 810114370, 1620228740]

約数ペア:

[(1, 1620228740), (2, 810114370), (4, 405057185), (5, 324045748), (10, 162022874), (13, 124632980), (20, 81011437), (26, 62316490), (52, 31158245), (65, 24926596), (130, 12463298), (181, 8951540), (260, 6231649), (362, 4475770), (724, 2237885), (905, 1790308), (1810, 895154), (2353, 688580), (3620, 447577), (4706, 344290), (9412, 172145), (11765, 137716), (23530, 68858), (34429, 47060)]