2920890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{1987}}^1$

素因数の和:2011

約数の個数: 48

約数和(自身を含む): 8158752

約数和(自身を除く): 5237862

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 1987, 3974, 5961, 9935, 11922, 13909, 19870, 27818, 29805, 41727, 59610, 69545, 83454, 97363, 139090, 194726, 208635, 292089, 417270, 486815, 584178, 973630, 1460445, 2920890]

約数ペア:

[(1, 2920890), (2, 1460445), (3, 973630), (5, 584178), (6, 486815), (7, 417270), (10, 292089), (14, 208635), (15, 194726), (21, 139090), (30, 97363), (35, 83454), (42, 69545), (49, 59610), (70, 41727), (98, 29805), (105, 27818), (147, 19870), (210, 13909), (245, 11922), (294, 9935), (490, 5961), (735, 3974), (1470, 1987)]