64543340

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{28559}}^1$

素因数の和:28681

約数の個数: 24

約数和(自身を含む): 136745280

約数和(自身を除く): 72201940

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 28559, 57118, 114236, 142795, 285590, 571180, 3227167, 6454334, 12908668, 16135835, 32271670, 64543340]

約数ペア:

[(1, 64543340), (2, 32271670), (4, 16135835), (5, 12908668), (10, 6454334), (20, 3227167), (113, 571180), (226, 285590), (452, 142795), (565, 114236), (1130, 57118), (2260, 28559)]