201618220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{661}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 431073216

約数和(自身を除く): 229454996

約数列:

[1, 2, 4, 5, 10, 20, 101, 151, 202, 302, 404, 505, 604, 661, 755, 1010, 1322, 1510, 2020, 2644, 3020, 3305, 6610, 13220, 15251, 30502, 61004, 66761, 76255, 99811, 133522, 152510, 199622, 267044, 305020, 333805, 399244, 499055, 667610, 998110, 1335220, 1996220, 10080911, 20161822, 40323644, 50404555, 100809110, 201618220]

約数ペア:

[(1, 201618220), (2, 100809110), (4, 50404555), (5, 40323644), (10, 20161822), (20, 10080911), (101, 1996220), (151, 1335220), (202, 998110), (302, 667610), (404, 499055), (505, 399244), (604, 333805), (661, 305020), (755, 267044), (1010, 199622), (1322, 152510), (1510, 133522), (2020, 99811), (2644, 76255), (3020, 66761), (3305, 61004), (6610, 30502), (13220, 15251)]