128445560

素因数分解:

$2^3\times 5^1\times {\mathrm{1181}}^1\times {\mathrm{2719}}^1$

素因数の和:3911

約数の個数: 32

約数和(自身を含む): 289353600

約数和(自身を除く): 160908040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1181, 2362, 2719, 4724, 5438, 5905, 9448, 10876, 11810, 13595, 21752, 23620, 27190, 47240, 54380, 108760, 3211139, 6422278, 12844556, 16055695, 25689112, 32111390, 64222780, 128445560]

約数ペア:

[(1, 128445560), (2, 64222780), (4, 32111390), (5, 25689112), (8, 16055695), (10, 12844556), (20, 6422278), (40, 3211139), (1181, 108760), (2362, 54380), (2719, 47240), (4724, 27190), (5438, 23620), (5905, 21752), (9448, 13595), (10876, 11810)]