156979580

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{487}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 336462336

約数和(自身を除く): 179482756

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 227, 284, 355, 454, 487, 710, 908, 974, 1135, 1420, 1948, 2270, 2435, 4540, 4870, 9740, 16117, 32234, 34577, 64468, 69154, 80585, 110549, 138308, 161170, 172885, 221098, 322340, 345770, 442196, 552745, 691540, 1105490, 2210980, 7848979, 15697958, 31395916, 39244895, 78489790, 156979580]

約数ペア:

[(1, 156979580), (2, 78489790), (4, 39244895), (5, 31395916), (10, 15697958), (20, 7848979), (71, 2210980), (142, 1105490), (227, 691540), (284, 552745), (355, 442196), (454, 345770), (487, 322340), (710, 221098), (908, 172885), (974, 161170), (1135, 138308), (1420, 110549), (1948, 80585), (2270, 69154), (2435, 64468), (4540, 34577), (4870, 32234), (9740, 16117)]