40043008

素因数分解:

$2^9\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:612

約数の個数: 40

約数和(自身を含む): 80616492

約数和(自身を除く): 40573484

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 256, 394, 397, 512, 788, 794, 1576, 1588, 3152, 3176, 6304, 6352, 12608, 12704, 25216, 25408, 50432, 50816, 78209, 100864, 101632, 156418, 203264, 312836, 625672, 1251344, 2502688, 5005376, 10010752, 20021504, 40043008]

約数ペア:

[(1, 40043008), (2, 20021504), (4, 10010752), (8, 5005376), (16, 2502688), (32, 1251344), (64, 625672), (128, 312836), (197, 203264), (256, 156418), (394, 101632), (397, 100864), (512, 78209), (788, 50816), (794, 50432), (1576, 25408), (1588, 25216), (3152, 12704), (3176, 12608), (6304, 6352)]