20020715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28001}}^1$

素因数の和:28030

約数の個数: 16

約数和(自身を含む): 28226016

約数和(自身を除く): 8205301

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28001, 140005, 308011, 364013, 1540055, 1820065, 4004143, 20020715]

約数ペア:

[(1, 20020715), (5, 4004143), (11, 1820065), (13, 1540055), (55, 364013), (65, 308011), (143, 140005), (715, 28001)]