86974220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140281}}^1$

素因数の和:140321

約数の個数: 24

約数和(自身を含む): 188539008

約数和(自身を除く): 101564788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140281, 280562, 561124, 701405, 1402810, 2805620, 4348711, 8697422, 17394844, 21743555, 43487110, 86974220]

約数ペア:

[(1, 86974220), (2, 43487110), (4, 21743555), (5, 17394844), (10, 8697422), (20, 4348711), (31, 2805620), (62, 1402810), (124, 701405), (155, 561124), (310, 280562), (620, 140281)]