81204765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{571}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 137280000

約数和(自身を除く): 56075235

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 499, 571, 1497, 1713, 2495, 2855, 7485, 8565, 9481, 10849, 28443, 32547, 47405, 54245, 142215, 162735, 284929, 854787, 1424645, 4273935, 5413651, 16240953, 27068255, 81204765]

約数ペア:

[(1, 81204765), (3, 27068255), (5, 16240953), (15, 5413651), (19, 4273935), (57, 1424645), (95, 854787), (285, 284929), (499, 162735), (571, 142215), (1497, 54245), (1713, 47405), (2495, 32547), (2855, 28443), (7485, 10849), (8565, 9481)]