71661420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{398119}}^1$

素因数の和:398134

約数の個数: 36

約数和(自身を含む): 217373520

約数和(自身を除く): 145712100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 398119, 796238, 1194357, 1592476, 1990595, 2388714, 3583071, 3981190, 4777428, 5971785, 7166142, 7962380, 11943570, 14332284, 17915355, 23887140, 35830710, 71661420]

約数ペア:

[(1, 71661420), (2, 35830710), (3, 23887140), (4, 17915355), (5, 14332284), (6, 11943570), (9, 7962380), (10, 7166142), (12, 5971785), (15, 4777428), (18, 3981190), (20, 3583071), (30, 2388714), (36, 1990595), (45, 1592476), (60, 1194357), (90, 796238), (180, 398119)]