8409040

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 19675080

約数和(自身を除く): 11266040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 409, 514, 818, 1028, 1285, 1636, 2045, 2056, 2570, 3272, 4090, 4112, 5140, 6544, 8180, 10280, 16360, 20560, 32720, 105113, 210226, 420452, 525565, 840904, 1051130, 1681808, 2102260, 4204520, 8409040]

約数ペア:

[(1, 8409040), (2, 4204520), (4, 2102260), (5, 1681808), (8, 1051130), (10, 840904), (16, 525565), (20, 420452), (40, 210226), (80, 105113), (257, 32720), (409, 20560), (514, 16360), (818, 10280), (1028, 8180), (1285, 6544), (1636, 5140), (2045, 4112), (2056, 4090), (2570, 3272)]