28840175

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1811}}^1$

素因数の和:1848

約数の個数: 36

約数和(自身を含む): 44825256

約数和(自身を除く): 15985081

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 455, 637, 1225, 1811, 2275, 3185, 9055, 12677, 15925, 23543, 45275, 63385, 88739, 117715, 164801, 316925, 443695, 588575, 824005, 1153607, 2218475, 4120025, 5768035, 28840175]

約数ペア:

[(1, 28840175), (5, 5768035), (7, 4120025), (13, 2218475), (25, 1153607), (35, 824005), (49, 588575), (65, 443695), (91, 316925), (175, 164801), (245, 117715), (325, 88739), (455, 63385), (637, 45275), (1225, 23543), (1811, 15925), (2275, 12677), (3185, 9055)]