20248621960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{745531}}^1$

素因数の和:745646

約数の個数: 64

約数和(自身を含む): 52604737920

約数和(自身を除く): 32356115960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2716, 3395, 3880, 5432, 6790, 13580, 27160, 745531, 1491062, 2982124, 3727655, 5218717, 5964248, 7455310, 10437434, 14910620, 20874868, 26093585, 29821240, 41749736, 52187170, 72316507, 104374340, 144633014, 208748680, 289266028, 361582535, 506215549, 578532056, 723165070, 1012431098, 1446330140, 2024862196, 2531077745, 2892660280, 4049724392, 5062155490, 10124310980, 20248621960]

約数ペア:

[(1, 20248621960), (2, 10124310980), (4, 5062155490), (5, 4049724392), (7, 2892660280), (8, 2531077745), (10, 2024862196), (14, 1446330140), (20, 1012431098), (28, 723165070), (35, 578532056), (40, 506215549), (56, 361582535), (70, 289266028), (97, 208748680), (140, 144633014), (194, 104374340), (280, 72316507), (388, 52187170), (485, 41749736), (679, 29821240), (776, 26093585), (970, 20874868), (1358, 14910620), (1940, 10437434), (2716, 7455310), (3395, 5964248), (3880, 5218717), (5432, 3727655), (6790, 2982124), (13580, 1491062), (27160, 745531)]