20215810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1033}}^1$

素因数の和:1162

約数の個数: 32

約数和(自身を含む): 38712960

約数和(自身を除く): 18497150

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1033, 1957, 2066, 3914, 5165, 9785, 10330, 19570, 19627, 39254, 98135, 106399, 196270, 212798, 531995, 1063990, 2021581, 4043162, 10107905, 20215810]

約数ペア:

[(1, 20215810), (2, 10107905), (5, 4043162), (10, 2021581), (19, 1063990), (38, 531995), (95, 212798), (103, 196270), (190, 106399), (206, 98135), (515, 39254), (1030, 19627), (1033, 19570), (1957, 10330), (2066, 9785), (3914, 5165)]