20021504

素因数分解:

$2^8\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:610

約数の個数: 36

約数和(自身を含む): 40268844

約数和(自身を除く): 20247340

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 256, 394, 397, 788, 794, 1576, 1588, 3152, 3176, 6304, 6352, 12608, 12704, 25216, 25408, 50432, 50816, 78209, 101632, 156418, 312836, 625672, 1251344, 2502688, 5005376, 10010752, 20021504]

約数ペア:

[(1, 20021504), (2, 10010752), (4, 5005376), (8, 2502688), (16, 1251344), (32, 625672), (64, 312836), (128, 156418), (197, 101632), (256, 78209), (394, 50816), (397, 50432), (788, 25408), (794, 25216), (1576, 12704), (1588, 12608), (3152, 6352), (3176, 6304)]