4221820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{251}}^1$

素因数の和:318

約数の個数: 36

約数和(自身を含む): 9218664

約数和(自身を除く): 4996844

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 251, 290, 502, 580, 841, 1004, 1255, 1682, 2510, 3364, 4205, 5020, 7279, 8410, 14558, 16820, 29116, 36395, 72790, 145580, 211091, 422182, 844364, 1055455, 2110910, 4221820]

約数ペア:

[(1, 4221820), (2, 2110910), (4, 1055455), (5, 844364), (10, 422182), (20, 211091), (29, 145580), (58, 72790), (116, 36395), (145, 29116), (251, 16820), (290, 14558), (502, 8410), (580, 7279), (841, 5020), (1004, 4205), (1255, 3364), (1682, 2510)]