1820348540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{41203}}^1$

素因数の和:41306

約数の個数: 36

約数和(自身を含む): 3905891976

約数和(自身を除く): 2085543436

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 2209, 4418, 8836, 11045, 22090, 41203, 44180, 82406, 164812, 206015, 412030, 824060, 1936541, 3873082, 7746164, 9682705, 19365410, 38730820, 91017427, 182034854, 364069708, 455087135, 910174270, 1820348540]

約数ペア:

[(1, 1820348540), (2, 910174270), (4, 455087135), (5, 364069708), (10, 182034854), (20, 91017427), (47, 38730820), (94, 19365410), (188, 9682705), (235, 7746164), (470, 3873082), (940, 1936541), (2209, 824060), (4418, 412030), (8836, 206015), (11045, 164812), (22090, 82406), (41203, 44180)]