169172980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{941}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 363197520

約数和(自身を除く): 194024540

約数列:

[1, 2, 4, 5, 10, 20, 89, 101, 178, 202, 356, 404, 445, 505, 890, 941, 1010, 1780, 1882, 2020, 3764, 4705, 8989, 9410, 17978, 18820, 35956, 44945, 83749, 89890, 95041, 167498, 179780, 190082, 334996, 380164, 418745, 475205, 837490, 950410, 1674980, 1900820, 8458649, 16917298, 33834596, 42293245, 84586490, 169172980]

約数ペア:

[(1, 169172980), (2, 84586490), (4, 42293245), (5, 33834596), (10, 16917298), (20, 8458649), (89, 1900820), (101, 1674980), (178, 950410), (202, 837490), (356, 475205), (404, 418745), (445, 380164), (505, 334996), (890, 190082), (941, 179780), (1010, 167498), (1780, 95041), (1882, 89890), (2020, 83749), (3764, 44945), (4705, 35956), (8989, 18820), (9410, 17978)]