20265380

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3739}}^1$

素因数の和:4019

約数の個数: 24

約数和(自身を含む): 42725760

約数和(自身を除く): 22460380

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3739, 5420, 7478, 14956, 18695, 37390, 74780, 1013269, 2026538, 4053076, 5066345, 10132690, 20265380]

約数ペア:

[(1, 20265380), (2, 10132690), (4, 5066345), (5, 4053076), (10, 2026538), (20, 1013269), (271, 74780), (542, 37390), (1084, 18695), (1355, 14956), (2710, 7478), (3739, 5420)]