4204520

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 9520200

約数和(自身を除く): 5315680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 409, 514, 818, 1028, 1285, 1636, 2045, 2056, 2570, 3272, 4090, 5140, 8180, 10280, 16360, 105113, 210226, 420452, 525565, 840904, 1051130, 2102260, 4204520]

約数ペア:

[(1, 4204520), (2, 2102260), (4, 1051130), (5, 840904), (8, 525565), (10, 420452), (20, 210226), (40, 105113), (257, 16360), (409, 10280), (514, 8180), (818, 5140), (1028, 4090), (1285, 3272), (1636, 2570), (2045, 2056)]