15678505540

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1\times {\mathrm{20411}}^1$

素因数の和:20812

約数の個数: 48

約数和(自身を含む): 33263395200

約数和(自身を除く): 17584889660

約数列:

[1, 2, 4, 5, 10, 20, 193, 199, 386, 398, 772, 796, 965, 995, 1930, 1990, 3860, 3980, 20411, 38407, 40822, 76814, 81644, 102055, 153628, 192035, 204110, 384070, 408220, 768140, 3939323, 4061789, 7878646, 8123578, 15757292, 16247156, 19696615, 20308945, 39393230, 40617890, 78786460, 81235780, 783925277, 1567850554, 3135701108, 3919626385, 7839252770, 15678505540]

約数ペア:

[(1, 15678505540), (2, 7839252770), (4, 3919626385), (5, 3135701108), (10, 1567850554), (20, 783925277), (193, 81235780), (199, 78786460), (386, 40617890), (398, 39393230), (772, 20308945), (796, 19696615), (965, 16247156), (995, 15757292), (1930, 8123578), (1990, 7878646), (3860, 4061789), (3980, 3939323), (20411, 768140), (38407, 408220), (40822, 384070), (76814, 204110), (81644, 192035), (102055, 153628)]