28367120

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2551}}^1$

素因数の和:2703

約数の個数: 40

約数和(自身を含む): 66454080

約数和(自身を除く): 38086960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2551, 2780, 5102, 5560, 10204, 11120, 12755, 20408, 25510, 40816, 51020, 102040, 204080, 354589, 709178, 1418356, 1772945, 2836712, 3545890, 5673424, 7091780, 14183560, 28367120]

約数ペア:

[(1, 28367120), (2, 14183560), (4, 7091780), (5, 5673424), (8, 3545890), (10, 2836712), (16, 1772945), (20, 1418356), (40, 709178), (80, 354589), (139, 204080), (278, 102040), (556, 51020), (695, 40816), (1112, 25510), (1390, 20408), (2224, 12755), (2551, 11120), (2780, 10204), (5102, 5560)]