81155775

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37313}}^1$

素因数の和:37355

約数の個数: 24

約数和(自身を含む): 138808080

約数和(自身を除く): 57652305

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 37313, 111939, 186565, 559695, 932825, 1082077, 2798475, 3246231, 5410385, 16231155, 27051925, 81155775]

約数ペア:

[(1, 81155775), (3, 27051925), (5, 16231155), (15, 5410385), (25, 3246231), (29, 2798475), (75, 1082077), (87, 932825), (145, 559695), (435, 186565), (725, 111939), (2175, 37313)]