20156508760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16255249}}^1$

素因数の和:16255291

約数の個数: 32

約数和(自身を含む): 46815120000

約数和(自身を除く): 26658611240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16255249, 32510498, 65020996, 81276245, 130041992, 162552490, 325104980, 503912719, 650209960, 1007825438, 2015650876, 2519563595, 4031301752, 5039127190, 10078254380, 20156508760]

約数ペア:

[(1, 20156508760), (2, 10078254380), (4, 5039127190), (5, 4031301752), (8, 2519563595), (10, 2015650876), (20, 1007825438), (31, 650209960), (40, 503912719), (62, 325104980), (124, 162552490), (155, 130041992), (248, 81276245), (310, 65020996), (620, 32510498), (1240, 16255249)]