215393480

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{114571}}^1$

素因数の和:114629

約数の個数: 32

約数和(自身を含む): 494951040

約数和(自身を除く): 279557560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 114571, 229142, 458284, 572855, 916568, 1145710, 2291420, 4582840, 5384837, 10769674, 21539348, 26924185, 43078696, 53848370, 107696740, 215393480]

約数ペア:

[(1, 215393480), (2, 107696740), (4, 53848370), (5, 43078696), (8, 26924185), (10, 21539348), (20, 10769674), (40, 5384837), (47, 4582840), (94, 2291420), (188, 1145710), (235, 916568), (376, 572855), (470, 458284), (940, 229142), (1880, 114571)]