20010910

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 17197250

約数列:

[1, 2, 5, 10, 43, 86, 173, 215, 269, 346, 430, 538, 865, 1345, 1730, 2690, 7439, 11567, 14878, 23134, 37195, 46537, 57835, 74390, 93074, 115670, 232685, 465370, 2001091, 4002182, 10005455, 20010910]

約数ペア:

[(1, 20010910), (2, 10005455), (5, 4002182), (10, 2001091), (43, 465370), (86, 232685), (173, 115670), (215, 93074), (269, 74390), (346, 57835), (430, 46537), (538, 37195), (865, 23134), (1345, 14878), (1730, 11567), (2690, 7439)]