218787320

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{3391}}^1$

素因数の和:5015

約数の個数: 32

約数和(自身を含む): 492721920

約数和(自身を除く): 273934600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226, 3391, 6452, 6782, 8065, 12904, 13564, 16130, 16955, 27128, 32260, 33910, 64520, 67820, 135640, 5469683, 10939366, 21878732, 27348415, 43757464, 54696830, 109393660, 218787320]

約数ペア:

[(1, 218787320), (2, 109393660), (4, 54696830), (5, 43757464), (8, 27348415), (10, 21878732), (20, 10939366), (40, 5469683), (1613, 135640), (3226, 67820), (3391, 64520), (6452, 33910), (6782, 32260), (8065, 27128), (12904, 16955), (13564, 16130)]