128946455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 172687680

約数和(自身を除く): 43741225

約数列:

[1, 5, 11, 55, 109, 137, 157, 545, 685, 785, 1199, 1507, 1727, 5995, 7535, 8635, 14933, 17113, 21509, 74665, 85565, 107545, 164263, 188243, 236599, 821315, 941215, 1182995, 2344481, 11722405, 25789291, 128946455]

約数ペア:

[(1, 128946455), (5, 25789291), (11, 11722405), (55, 2344481), (109, 1182995), (137, 941215), (157, 821315), (545, 236599), (685, 188243), (785, 164263), (1199, 107545), (1507, 85565), (1727, 74665), (5995, 21509), (7535, 17113), (8635, 14933)]