8121880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15619}}^1$

素因数の和:15643

約数の個数: 32

約数和(自身を含む): 19681200

約数和(自身を除く): 11559320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 15619, 31238, 62476, 78095, 124952, 156190, 203047, 312380, 406094, 624760, 812188, 1015235, 1624376, 2030470, 4060940, 8121880]

約数ペア:

[(1, 8121880), (2, 4060940), (4, 2030470), (5, 1624376), (8, 1015235), (10, 812188), (13, 624760), (20, 406094), (26, 312380), (40, 203047), (52, 156190), (65, 124952), (104, 78095), (130, 62476), (260, 31238), (520, 15619)]