64359220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 138047616

約数和(自身を除く): 73688396

約数列:

[1, 2, 4, 5, 10, 20, 101, 151, 202, 211, 302, 404, 422, 505, 604, 755, 844, 1010, 1055, 1510, 2020, 2110, 3020, 4220, 15251, 21311, 30502, 31861, 42622, 61004, 63722, 76255, 85244, 106555, 127444, 152510, 159305, 213110, 305020, 318610, 426220, 637220, 3217961, 6435922, 12871844, 16089805, 32179610, 64359220]

約数ペア:

[(1, 64359220), (2, 32179610), (4, 16089805), (5, 12871844), (10, 6435922), (20, 3217961), (101, 637220), (151, 426220), (202, 318610), (211, 305020), (302, 213110), (404, 159305), (422, 152510), (505, 127444), (604, 106555), (755, 85244), (844, 76255), (1010, 63722), (1055, 61004), (1510, 42622), (2020, 31861), (2110, 30502), (3020, 21311), (4220, 15251)]