210056780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{1061}}^1$

素因数の和:1610

約数の個数: 48

約数和(自身を含む): 465665760

約数和(自身を除く): 255608980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 521, 1042, 1061, 2084, 2122, 2605, 4244, 5210, 5305, 9899, 10420, 10610, 19798, 20159, 21220, 39596, 40318, 49495, 80636, 98990, 100795, 197980, 201590, 403180, 552781, 1105562, 2211124, 2763905, 5527810, 10502839, 11055620, 21005678, 42011356, 52514195, 105028390, 210056780]

約数ペア:

[(1, 210056780), (2, 105028390), (4, 52514195), (5, 42011356), (10, 21005678), (19, 11055620), (20, 10502839), (38, 5527810), (76, 2763905), (95, 2211124), (190, 1105562), (380, 552781), (521, 403180), (1042, 201590), (1061, 197980), (2084, 100795), (2122, 98990), (2605, 80636), (4244, 49495), (5210, 40318), (5305, 39596), (9899, 21220), (10420, 20159), (10610, 19798)]