8915860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 19559232

約数和(自身を除く): 10643372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 131, 164, 166, 205, 262, 332, 410, 415, 524, 655, 820, 830, 1310, 1660, 2620, 3403, 5371, 6806, 10742, 10873, 13612, 17015, 21484, 21746, 26855, 34030, 43492, 53710, 54365, 68060, 107420, 108730, 217460, 445793, 891586, 1783172, 2228965, 4457930, 8915860]

約数ペア:

[(1, 8915860), (2, 4457930), (4, 2228965), (5, 1783172), (10, 891586), (20, 445793), (41, 217460), (82, 108730), (83, 107420), (131, 68060), (164, 54365), (166, 53710), (205, 43492), (262, 34030), (332, 26855), (410, 21746), (415, 21484), (524, 17015), (655, 13612), (820, 10873), (830, 10742), (1310, 6806), (1660, 5371), (2620, 3403)]