495890900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{1531}}^1$

素因数の和:1665

約数の個数: 72

約数和(自身を含む): 1117011840

約数和(自身を除く): 621120940

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 79, 82, 100, 158, 164, 205, 316, 395, 410, 790, 820, 1025, 1531, 1580, 1975, 2050, 3062, 3239, 3950, 4100, 6124, 6478, 7655, 7900, 12956, 15310, 16195, 30620, 32390, 38275, 62771, 64780, 76550, 80975, 120949, 125542, 153100, 161950, 241898, 251084, 313855, 323900, 483796, 604745, 627710, 1209490, 1255420, 1569275, 2418980, 3023725, 3138550, 4958909, 6047450, 6277100, 9917818, 12094900, 19835636, 24794545, 49589090, 99178180, 123972725, 247945450, 495890900]

約数ペア:

[(1, 495890900), (2, 247945450), (4, 123972725), (5, 99178180), (10, 49589090), (20, 24794545), (25, 19835636), (41, 12094900), (50, 9917818), (79, 6277100), (82, 6047450), (100, 4958909), (158, 3138550), (164, 3023725), (205, 2418980), (316, 1569275), (395, 1255420), (410, 1209490), (790, 627710), (820, 604745), (1025, 483796), (1531, 323900), (1580, 313855), (1975, 251084), (2050, 241898), (3062, 161950), (3239, 153100), (3950, 125542), (4100, 120949), (6124, 80975), (6478, 76550), (7655, 64780), (7900, 62771), (12956, 38275), (15310, 32390), (16195, 30620)]