71309830

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{17783}}^1$

素因数の和:18191

約数の個数: 16

約数和(自身を含む): 128685024

約数和(自身を除く): 57375194

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 17783, 35566, 88915, 177830, 7130983, 14261966, 35654915, 71309830]

約数ペア:

[(1, 71309830), (2, 35654915), (5, 14261966), (10, 7130983), (401, 177830), (802, 88915), (2005, 35566), (4010, 17783)]