210843320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{128563}}^1$

素因数の和:128615

約数の個数: 32

約数和(自身を含む): 485971920

約数和(自身を除く): 275128600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 128563, 257126, 514252, 642815, 1028504, 1285630, 2571260, 5142520, 5271083, 10542166, 21084332, 26355415, 42168664, 52710830, 105421660, 210843320]

約数ペア:

[(1, 210843320), (2, 105421660), (4, 52710830), (5, 42168664), (8, 26355415), (10, 21084332), (20, 10542166), (40, 5271083), (41, 5142520), (82, 2571260), (164, 1285630), (205, 1028504), (328, 642815), (410, 514252), (820, 257126), (1640, 128563)]