8151520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3919}}^1$

素因数の和:3947

約数の個数: 48

約数和(自身を含む): 20744640

約数和(自身を除く): 12593120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 3919, 7838, 15676, 19595, 31352, 39190, 50947, 62704, 78380, 101894, 125408, 156760, 203788, 254735, 313520, 407576, 509470, 627040, 815152, 1018940, 1630304, 2037880, 4075760, 8151520]

約数ペア:

[(1, 8151520), (2, 4075760), (4, 2037880), (5, 1630304), (8, 1018940), (10, 815152), (13, 627040), (16, 509470), (20, 407576), (26, 313520), (32, 254735), (40, 203788), (52, 156760), (65, 125408), (80, 101894), (104, 78380), (130, 62704), (160, 50947), (208, 39190), (260, 31352), (416, 19595), (520, 15676), (1040, 7838), (2080, 3919)]