20123998060

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{77813}}^1$

素因数の和:78082

約数の個数: 48

約数和(自身を含む): 43113936096

約数和(自身を除く): 22989938036

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 193, 268, 335, 386, 670, 772, 965, 1340, 1930, 3860, 12931, 25862, 51724, 64655, 77813, 129310, 155626, 258620, 311252, 389065, 778130, 1556260, 5213471, 10426942, 15017909, 20853884, 26067355, 30035818, 52134710, 60071636, 75089545, 104269420, 150179090, 300358180, 1006199903, 2012399806, 4024799612, 5030999515, 10061999030, 20123998060]

約数ペア:

[(1, 20123998060), (2, 10061999030), (4, 5030999515), (5, 4024799612), (10, 2012399806), (20, 1006199903), (67, 300358180), (134, 150179090), (193, 104269420), (268, 75089545), (335, 60071636), (386, 52134710), (670, 30035818), (772, 26067355), (965, 20853884), (1340, 15017909), (1930, 10426942), (3860, 5213471), (12931, 1556260), (25862, 778130), (51724, 389065), (64655, 311252), (77813, 258620), (129310, 155626)]