20120705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11801}}^1$

素因数の和:11848

約数の個数: 16

約数和(自身を含む): 27191808

約数和(自身を除く): 7071103

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11801, 59005, 129811, 365831, 649055, 1829155, 4024141, 20120705]

約数ペア:

[(1, 20120705), (5, 4024141), (11, 1829155), (31, 649055), (55, 365831), (155, 129811), (341, 59005), (1705, 11801)]