220103875

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:844

約数の個数: 32

約数和(自身を含む): 287539200

約数和(自身を除く): 67435325

約数列:

[1, 5, 25, 31, 79, 125, 155, 395, 719, 775, 1975, 2449, 3595, 3875, 9875, 12245, 17975, 22289, 56801, 61225, 89875, 111445, 284005, 306125, 557225, 1420025, 1760831, 2786125, 7100125, 8804155, 44020775, 220103875]

約数ペア:

[(1, 220103875), (5, 44020775), (25, 8804155), (31, 7100125), (79, 2786125), (125, 1760831), (155, 1420025), (395, 557225), (719, 306125), (775, 284005), (1975, 111445), (2449, 89875), (3595, 61225), (3875, 56801), (9875, 22289), (12245, 17975)]