31785520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2351}}^1$

素因数の和:2390

約数の個数: 60

約数和(自身を含む): 80057376

約数和(自身を除く): 48271856

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2351, 2704, 3380, 4702, 6760, 9404, 11755, 13520, 18808, 23510, 30563, 37616, 47020, 61126, 94040, 122252, 152815, 188080, 244504, 305630, 397319, 489008, 611260, 794638, 1222520, 1589276, 1986595, 2445040, 3178552, 3973190, 6357104, 7946380, 15892760, 31785520]

約数ペア:

[(1, 31785520), (2, 15892760), (4, 7946380), (5, 6357104), (8, 3973190), (10, 3178552), (13, 2445040), (16, 1986595), (20, 1589276), (26, 1222520), (40, 794638), (52, 611260), (65, 489008), (80, 397319), (104, 305630), (130, 244504), (169, 188080), (208, 152815), (260, 122252), (338, 94040), (520, 61126), (676, 47020), (845, 37616), (1040, 30563), (1352, 23510), (1690, 18808), (2351, 13520), (2704, 11755), (3380, 9404), (4702, 6760)]