20490570

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 56532168

約数和(自身を除く): 36041598

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 81, 82, 90, 123, 135, 162, 205, 246, 270, 369, 405, 410, 615, 617, 738, 810, 1107, 1230, 1234, 1845, 1851, 2214, 3085, 3321, 3690, 3702, 5535, 5553, 6170, 6642, 9255, 11070, 11106, 16605, 16659, 18510, 25297, 27765, 33210, 33318, 49977, 50594, 55530, 75891, 83295, 99954, 126485, 151782, 166590, 227673, 249885, 252970, 379455, 455346, 499770, 683019, 758910, 1138365, 1366038, 2049057, 2276730, 3415095, 4098114, 6830190, 10245285, 20490570]

約数ペア:

[(1, 20490570), (2, 10245285), (3, 6830190), (5, 4098114), (6, 3415095), (9, 2276730), (10, 2049057), (15, 1366038), (18, 1138365), (27, 758910), (30, 683019), (41, 499770), (45, 455346), (54, 379455), (81, 252970), (82, 249885), (90, 227673), (123, 166590), (135, 151782), (162, 126485), (205, 99954), (246, 83295), (270, 75891), (369, 55530), (405, 50594), (410, 49977), (615, 33318), (617, 33210), (738, 27765), (810, 25297), (1107, 18510), (1230, 16659), (1234, 16605), (1845, 11106), (1851, 11070), (2214, 9255), (3085, 6642), (3321, 6170), (3690, 5553), (3702, 5535)]