20647570

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 17672558

約数列:

[1, 2, 5, 10, 47, 94, 197, 223, 235, 394, 446, 470, 985, 1115, 1970, 2230, 9259, 10481, 18518, 20962, 43931, 46295, 52405, 87862, 92590, 104810, 219655, 439310, 2064757, 4129514, 10323785, 20647570]

約数ペア:

[(1, 20647570), (2, 10323785), (5, 4129514), (10, 2064757), (47, 439310), (94, 219655), (197, 104810), (223, 92590), (235, 87862), (394, 52405), (446, 46295), (470, 43931), (985, 20962), (1115, 18518), (1970, 10481), (2230, 9259)]