128650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:126

約数の個数: 24

約数和(自身を含む): 249984

約数和(自身を除く): 121334

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 83, 155, 166, 310, 415, 775, 830, 1550, 2075, 2573, 4150, 5146, 12865, 25730, 64325, 128650]

約数ペア:

[(1, 128650), (2, 64325), (5, 25730), (10, 12865), (25, 5146), (31, 4150), (50, 2573), (62, 2075), (83, 1550), (155, 830), (166, 775), (310, 415)]