1640441380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4316951}}^1$

素因数の和:4316979

約数の個数: 24

約数和(自身を含む): 3626239680

約数和(自身を除く): 1985798300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 4316951, 8633902, 17267804, 21584755, 43169510, 82022069, 86339020, 164044138, 328088276, 410110345, 820220690, 1640441380]

約数ペア:

[(1, 1640441380), (2, 820220690), (4, 410110345), (5, 328088276), (10, 164044138), (19, 86339020), (20, 82022069), (38, 43169510), (76, 21584755), (95, 17267804), (190, 8633902), (380, 4316951)]