640935252

素因数分解:

$2^2\times 3^2\times {\mathrm{17803757}}^1$

素因数の和:17803767

約数の個数: 18

約数和(自身を含む): 1620141978

約数和(自身を除く): 979206726

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 17803757, 35607514, 53411271, 71215028, 106822542, 160233813, 213645084, 320467626, 640935252]

約数ペア:

[(1, 640935252), (2, 320467626), (3, 213645084), (4, 160233813), (6, 106822542), (9, 71215028), (12, 53411271), (18, 35607514), (36, 17803757)]