28351705

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 9750695

約数列:

[1, 5, 19, 29, 41, 95, 145, 205, 251, 551, 779, 1189, 1255, 2755, 3895, 4769, 5945, 7279, 10291, 22591, 23845, 36395, 51455, 112955, 138301, 195529, 298439, 691505, 977645, 1492195, 5670341, 28351705]

約数ペア:

[(1, 28351705), (5, 5670341), (19, 1492195), (29, 977645), (41, 691505), (95, 298439), (145, 195529), (205, 138301), (251, 112955), (551, 51455), (779, 36395), (1189, 23845), (1255, 22591), (2755, 10291), (3895, 7279), (4769, 5945)]