20405722220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4130713}}^1$

素因数の和:4130754

約数の個数: 48

約数和(自身を含む): 48577196640

約数和(自身を除く): 28171474420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 4130713, 8261426, 16522852, 20653565, 41307130, 53699269, 78483547, 82614260, 107398538, 156967094, 214797076, 268496345, 313934188, 392417735, 536992690, 784835470, 1020286111, 1073985380, 1569670940, 2040572222, 4081144444, 5101430555, 10202861110, 20405722220]

約数ペア:

[(1, 20405722220), (2, 10202861110), (4, 5101430555), (5, 4081144444), (10, 2040572222), (13, 1569670940), (19, 1073985380), (20, 1020286111), (26, 784835470), (38, 536992690), (52, 392417735), (65, 313934188), (76, 268496345), (95, 214797076), (130, 156967094), (190, 107398538), (247, 82614260), (260, 78483547), (380, 53699269), (494, 41307130), (988, 20653565), (1235, 16522852), (2470, 8261426), (4940, 4130713)]