20021320900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{6907}}^1$

素因数の和:7070

約数の個数: 144

約数和(自身を含む): 51374961792

約数和(自身を除く): 31353640892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 101, 140, 164, 175, 202, 205, 287, 350, 404, 410, 505, 574, 700, 707, 820, 1010, 1025, 1148, 1414, 1435, 2020, 2050, 2525, 2828, 2870, 3535, 4100, 4141, 5050, 5740, 6907, 7070, 7175, 8282, 10100, 13814, 14140, 14350, 16564, 17675, 20705, 27628, 28700, 28987, 34535, 35350, 41410, 48349, 57974, 69070, 70700, 82820, 96698, 103525, 115948, 138140, 144935, 172675, 193396, 207050, 241745, 283187, 289870, 345350, 414100, 483490, 566374, 579740, 690700, 697607, 724675, 966980, 1132748, 1208725, 1395214, 1415935, 1449350, 1982309, 2417450, 2790428, 2831870, 2898700, 3488035, 3964618, 4834900, 4883249, 5663740, 6976070, 7079675, 7929236, 9766498, 9911545, 13952140, 14159350, 17440175, 19532996, 19823090, 24416245, 28318700, 28601887, 34880350, 39646180, 48832490, 49557725, 57203774, 69760700, 97664980, 99115450, 114407548, 122081225, 143009435, 198230900, 200213209, 244162450, 286018870, 400426418, 488324900, 572037740, 715047175, 800852836, 1001066045, 1430094350, 2002132090, 2860188700, 4004264180, 5005330225, 10010660450, 20021320900]

約数ペア:

[(1, 20021320900), (2, 10010660450), (4, 5005330225), (5, 4004264180), (7, 2860188700), (10, 2002132090), (14, 1430094350), (20, 1001066045), (25, 800852836), (28, 715047175), (35, 572037740), (41, 488324900), (50, 400426418), (70, 286018870), (82, 244162450), (100, 200213209), (101, 198230900), (140, 143009435), (164, 122081225), (175, 114407548), (202, 99115450), (205, 97664980), (287, 69760700), (350, 57203774), (404, 49557725), (410, 48832490), (505, 39646180), (574, 34880350), (700, 28601887), (707, 28318700), (820, 24416245), (1010, 19823090), (1025, 19532996), (1148, 17440175), (1414, 14159350), (1435, 13952140), (2020, 9911545), (2050, 9766498), (2525, 7929236), (2828, 7079675), (2870, 6976070), (3535, 5663740), (4100, 4883249), (4141, 4834900), (5050, 3964618), (5740, 3488035), (6907, 2898700), (7070, 2831870), (7175, 2790428), (8282, 2417450), (10100, 1982309), (13814, 1449350), (14140, 1415935), (14350, 1395214), (16564, 1208725), (17675, 1132748), (20705, 966980), (27628, 724675), (28700, 697607), (28987, 690700), (34535, 579740), (35350, 566374), (41410, 483490), (48349, 414100), (57974, 345350), (69070, 289870), (70700, 283187), (82820, 241745), (96698, 207050), (103525, 193396), (115948, 172675), (138140, 144935)]