399778864

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{5591}}^1$

素因数の和:5749

約数の個数: 40

約数和(自身を含む): 800886240

約数和(自身を除く): 401107376

約数列:

[1, 2, 4, 8, 16, 41, 82, 109, 164, 218, 328, 436, 656, 872, 1744, 4469, 5591, 8938, 11182, 17876, 22364, 35752, 44728, 71504, 89456, 229231, 458462, 609419, 916924, 1218838, 1833848, 2437676, 3667696, 4875352, 9750704, 24986179, 49972358, 99944716, 199889432, 399778864]

約数ペア:

[(1, 399778864), (2, 199889432), (4, 99944716), (8, 49972358), (16, 24986179), (41, 9750704), (82, 4875352), (109, 3667696), (164, 2437676), (218, 1833848), (328, 1218838), (436, 916924), (656, 609419), (872, 458462), (1744, 229231), (4469, 89456), (5591, 71504), (8938, 44728), (11182, 35752), (17876, 22364)]