121878255

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{857}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 205920000

約数和(自身を除く): 84041745

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 499, 857, 1497, 2495, 2571, 4285, 7485, 9481, 12855, 16283, 28443, 47405, 48849, 81415, 142215, 244245, 427643, 1282929, 2138215, 6414645, 8125217, 24375651, 40626085, 121878255]

約数ペア:

[(1, 121878255), (3, 40626085), (5, 24375651), (15, 8125217), (19, 6414645), (57, 2138215), (95, 1282929), (285, 427643), (499, 244245), (857, 142215), (1497, 81415), (2495, 48849), (2571, 47405), (4285, 28443), (7485, 16283), (9481, 12855)]