80898820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2477}}^1$

素因数の和:2580

約数の個数: 48

約数和(自身を含む): 179843328

約数和(自身を除く): 98944508

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 710, 1420, 1633, 2477, 3266, 4954, 6532, 8165, 9908, 12385, 16330, 24770, 32660, 49540, 56971, 113942, 175867, 227884, 284855, 351734, 569710, 703468, 879335, 1139420, 1758670, 3517340, 4044941, 8089882, 16179764, 20224705, 40449410, 80898820]

約数ペア:

[(1, 80898820), (2, 40449410), (4, 20224705), (5, 16179764), (10, 8089882), (20, 4044941), (23, 3517340), (46, 1758670), (71, 1139420), (92, 879335), (115, 703468), (142, 569710), (230, 351734), (284, 284855), (355, 227884), (460, 175867), (710, 113942), (1420, 56971), (1633, 49540), (2477, 32660), (3266, 24770), (4954, 16330), (6532, 12385), (8165, 9908)]