215145980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{601}}^1\times {\mathrm{2557}}^1$

素因数の和:3174

約数の個数: 48

約数和(自身を含む): 517411776

約数和(自身を除く): 302265796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 601, 1202, 2404, 2557, 3005, 4207, 5114, 6010, 8414, 10228, 12020, 12785, 16828, 17899, 21035, 25570, 35798, 42070, 51140, 71596, 84140, 89495, 178990, 357980, 1536757, 3073514, 6147028, 7683785, 10757299, 15367570, 21514598, 30735140, 43029196, 53786495, 107572990, 215145980]

約数ペア:

[(1, 215145980), (2, 107572990), (4, 53786495), (5, 43029196), (7, 30735140), (10, 21514598), (14, 15367570), (20, 10757299), (28, 7683785), (35, 6147028), (70, 3073514), (140, 1536757), (601, 357980), (1202, 178990), (2404, 89495), (2557, 84140), (3005, 71596), (4207, 51140), (5114, 42070), (6010, 35798), (8414, 25570), (10228, 21035), (12020, 17899), (12785, 16828)]