78613240

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{2903}}^1$

素因数の和:3591

約数の個数: 32

約数和(自身を含む): 177202080

約数和(自身を除く): 98588840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1354, 2708, 2903, 3385, 5416, 5806, 6770, 11612, 13540, 14515, 23224, 27080, 29030, 58060, 116120, 1965331, 3930662, 7861324, 9826655, 15722648, 19653310, 39306620, 78613240]

約数ペア:

[(1, 78613240), (2, 39306620), (4, 19653310), (5, 15722648), (8, 9826655), (10, 7861324), (20, 3930662), (40, 1965331), (677, 116120), (1354, 58060), (2708, 29030), (2903, 27080), (3385, 23224), (5416, 14515), (5806, 13540), (6770, 11612)]