220956260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{22229}}^1$

素因数の和:22316

約数の個数: 48

約数和(自身を含む): 537788160

約数和(自身を除く): 316831900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 22229, 44458, 88916, 111145, 155603, 222290, 311206, 444580, 622412, 778015, 1556030, 1578259, 3112060, 3156518, 6313036, 7891295, 11047813, 15782590, 22095626, 31565180, 44191252, 55239065, 110478130, 220956260]

約数ペア:

[(1, 220956260), (2, 110478130), (4, 55239065), (5, 44191252), (7, 31565180), (10, 22095626), (14, 15782590), (20, 11047813), (28, 7891295), (35, 6313036), (70, 3156518), (71, 3112060), (140, 1578259), (142, 1556030), (284, 778015), (355, 622412), (497, 444580), (710, 311206), (994, 222290), (1420, 155603), (1988, 111145), (2485, 88916), (4970, 44458), (9940, 22229)]