8396220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19991}}^1$

素因数の和:20010

約数の個数: 48

約数和(自身を含む): 26869248

約数和(自身を除く): 18473028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 19991, 39982, 59973, 79964, 99955, 119946, 139937, 199910, 239892, 279874, 299865, 399820, 419811, 559748, 599730, 699685, 839622, 1199460, 1399370, 1679244, 2099055, 2798740, 4198110, 8396220]

約数ペア:

[(1, 8396220), (2, 4198110), (3, 2798740), (4, 2099055), (5, 1679244), (6, 1399370), (7, 1199460), (10, 839622), (12, 699685), (14, 599730), (15, 559748), (20, 419811), (21, 399820), (28, 299865), (30, 279874), (35, 239892), (42, 199910), (60, 139937), (70, 119946), (84, 99955), (105, 79964), (140, 59973), (210, 39982), (420, 19991)]