20199453950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{64877}}^1$

素因数の和:65381

約数の個数: 48

約数和(自身を含む): 40546154880

約数和(自身を除く): 20346700930

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 479, 650, 958, 2395, 4790, 6227, 11975, 12454, 23950, 31135, 62270, 64877, 129754, 155675, 311350, 324385, 648770, 843401, 1621925, 1686802, 3243850, 4217005, 8434010, 21085025, 31076083, 42170050, 62152166, 155380415, 310760830, 403989079, 776902075, 807978158, 1553804150, 2019945395, 4039890790, 10099726975, 20199453950]

約数ペア:

[(1, 20199453950), (2, 10099726975), (5, 4039890790), (10, 2019945395), (13, 1553804150), (25, 807978158), (26, 776902075), (50, 403989079), (65, 310760830), (130, 155380415), (325, 62152166), (479, 42170050), (650, 31076083), (958, 21085025), (2395, 8434010), (4790, 4217005), (6227, 3243850), (11975, 1686802), (12454, 1621925), (23950, 843401), (31135, 648770), (62270, 324385), (64877, 311350), (129754, 155675)]