639405306

素因数分解:

$2^1\times 3^3\times {\mathrm{181}}^1\times {\mathrm{65419}}^1$

素因数の和:65611

約数の個数: 32

約数和(自身を含む): 1428772800

約数和(自身を除く): 789367494

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 181, 362, 543, 1086, 1629, 3258, 4887, 9774, 65419, 130838, 196257, 392514, 588771, 1177542, 1766313, 3532626, 11840839, 23681678, 35522517, 71045034, 106567551, 213135102, 319702653, 639405306]

約数ペア:

[(1, 639405306), (2, 319702653), (3, 213135102), (6, 106567551), (9, 71045034), (18, 35522517), (27, 23681678), (54, 11840839), (181, 3532626), (362, 1766313), (543, 1177542), (1086, 588771), (1629, 392514), (3258, 196257), (4887, 130838), (9774, 65419)]