20176986050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{45053}}^1$

素因数の和:45144

約数の個数: 72

約数和(自身を含む): 41405797404

約数和(自身を除く): 21228811354

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 130, 169, 265, 325, 338, 530, 650, 689, 845, 1325, 1378, 1690, 2650, 3445, 4225, 6890, 8450, 8957, 17225, 17914, 34450, 44785, 45053, 89570, 90106, 223925, 225265, 447850, 450530, 585689, 1126325, 1171378, 2252650, 2387809, 2928445, 4775618, 5856890, 7613957, 11939045, 14642225, 15227914, 23878090, 29284450, 31041517, 38069785, 59695225, 62083034, 76139570, 119390450, 155207585, 190348925, 310415170, 380697850, 403539721, 776037925, 807079442, 1552075850, 2017698605, 4035397210, 10088493025, 20176986050]

約数ペア:

[(1, 20176986050), (2, 10088493025), (5, 4035397210), (10, 2017698605), (13, 1552075850), (25, 807079442), (26, 776037925), (50, 403539721), (53, 380697850), (65, 310415170), (106, 190348925), (130, 155207585), (169, 119390450), (265, 76139570), (325, 62083034), (338, 59695225), (530, 38069785), (650, 31041517), (689, 29284450), (845, 23878090), (1325, 15227914), (1378, 14642225), (1690, 11939045), (2650, 7613957), (3445, 5856890), (4225, 4775618), (6890, 2928445), (8450, 2387809), (8957, 2252650), (17225, 1171378), (17914, 1126325), (34450, 585689), (44785, 450530), (45053, 447850), (89570, 225265), (90106, 223925)]