905229140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{2557}}^1$

素因数の和:3168

約数の個数: 48

約数和(自身を含む): 1966508544

約数和(自身を除く): 1061279404

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 571, 620, 1142, 2284, 2557, 2855, 5114, 5710, 10228, 11420, 12785, 17701, 25570, 35402, 51140, 70804, 79267, 88505, 158534, 177010, 317068, 354020, 396335, 792670, 1460047, 1585340, 2920094, 5840188, 7300235, 14600470, 29200940, 45261457, 90522914, 181045828, 226307285, 452614570, 905229140]

約数ペア:

[(1, 905229140), (2, 452614570), (4, 226307285), (5, 181045828), (10, 90522914), (20, 45261457), (31, 29200940), (62, 14600470), (124, 7300235), (155, 5840188), (310, 2920094), (571, 1585340), (620, 1460047), (1142, 792670), (2284, 396335), (2557, 354020), (2855, 317068), (5114, 177010), (5710, 158534), (10228, 88505), (11420, 79267), (12785, 70804), (17701, 51140), (25570, 35402)]