87898780

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{26317}}^1$

素因数の和:26493

約数の個数: 24

約数和(自身を含む): 185699808

約数和(自身を除く): 97801028

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 26317, 52634, 105268, 131585, 263170, 526340, 4394939, 8789878, 17579756, 21974695, 43949390, 87898780]

約数ペア:

[(1, 87898780), (2, 43949390), (4, 21974695), (5, 17579756), (10, 8789878), (20, 4394939), (167, 526340), (334, 263170), (668, 131585), (835, 105268), (1670, 52634), (3340, 26317)]