81437650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{13687}}^1$

素因数の和:13723

約数の個数: 48

約数和(自身を含む): 183309696

約数和(自身を除く): 101872046

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 50, 70, 85, 119, 170, 175, 238, 350, 425, 595, 850, 1190, 2975, 5950, 13687, 27374, 68435, 95809, 136870, 191618, 232679, 342175, 465358, 479045, 684350, 958090, 1163395, 1628753, 2326790, 2395225, 3257506, 4790450, 5816975, 8143765, 11633950, 16287530, 40718825, 81437650]

約数ペア:

[(1, 81437650), (2, 40718825), (5, 16287530), (7, 11633950), (10, 8143765), (14, 5816975), (17, 4790450), (25, 3257506), (34, 2395225), (35, 2326790), (50, 1628753), (70, 1163395), (85, 958090), (119, 684350), (170, 479045), (175, 465358), (238, 342175), (350, 232679), (425, 191618), (595, 136870), (850, 95809), (1190, 68435), (2975, 27374), (5950, 13687)]