818786060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{2069}}^1$

素因数の和:2546

約数の個数: 48

約数和(自身を含む): 1761056640

約数和(自身を除く): 942270580

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 421, 470, 842, 940, 1684, 2069, 2105, 4138, 4210, 8276, 8420, 10345, 19787, 20690, 39574, 41380, 79148, 97243, 98935, 194486, 197870, 388972, 395740, 486215, 871049, 972430, 1742098, 1944860, 3484196, 4355245, 8710490, 17420980, 40939303, 81878606, 163757212, 204696515, 409393030, 818786060]

約数ペア:

[(1, 818786060), (2, 409393030), (4, 204696515), (5, 163757212), (10, 81878606), (20, 40939303), (47, 17420980), (94, 8710490), (188, 4355245), (235, 3484196), (421, 1944860), (470, 1742098), (842, 972430), (940, 871049), (1684, 486215), (2069, 395740), (2105, 388972), (4138, 197870), (4210, 194486), (8276, 98935), (8420, 97243), (10345, 79148), (19787, 41380), (20690, 39574)]