20090412400

素因数分解:

$2^4\times 5^2\times {\mathrm{1231}}^1\times {\mathrm{40801}}^1$

素因数の和:42050

約数の個数: 60

約数和(自身を含む): 48307609504

約数和(自身を除く): 28217197104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1231, 2462, 4924, 6155, 9848, 12310, 19696, 24620, 30775, 40801, 49240, 61550, 81602, 98480, 123100, 163204, 204005, 246200, 326408, 408010, 492400, 652816, 816020, 1020025, 1632040, 2040050, 3264080, 4080100, 8160200, 16320400, 50226031, 100452062, 200904124, 251130155, 401808248, 502260310, 803616496, 1004520620, 1255650775, 2009041240, 2511301550, 4018082480, 5022603100, 10045206200, 20090412400]

約数ペア:

[(1, 20090412400), (2, 10045206200), (4, 5022603100), (5, 4018082480), (8, 2511301550), (10, 2009041240), (16, 1255650775), (20, 1004520620), (25, 803616496), (40, 502260310), (50, 401808248), (80, 251130155), (100, 200904124), (200, 100452062), (400, 50226031), (1231, 16320400), (2462, 8160200), (4924, 4080100), (6155, 3264080), (9848, 2040050), (12310, 1632040), (19696, 1020025), (24620, 816020), (30775, 652816), (40801, 492400), (49240, 408010), (61550, 326408), (81602, 246200), (98480, 204005), (123100, 163204)]