20211760

素因数分解:

$2^4\times 5^1\times {\mathrm{467}}^1\times {\mathrm{541}}^1$

素因数の和:1021

約数の個数: 40

約数和(自身を含む): 47180016

約数和(自身を除く): 26968256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 467, 541, 934, 1082, 1868, 2164, 2335, 2705, 3736, 4328, 4670, 5410, 7472, 8656, 9340, 10820, 18680, 21640, 37360, 43280, 252647, 505294, 1010588, 1263235, 2021176, 2526470, 4042352, 5052940, 10105880, 20211760]

約数ペア:

[(1, 20211760), (2, 10105880), (4, 5052940), (5, 4042352), (8, 2526470), (10, 2021176), (16, 1263235), (20, 1010588), (40, 505294), (80, 252647), (467, 43280), (541, 37360), (934, 21640), (1082, 18680), (1868, 10820), (2164, 9340), (2335, 8656), (2705, 7472), (3736, 5410), (4328, 4670)]