7626820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 16765056

約数和(自身を除く): 9138236

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 131, 142, 164, 205, 262, 284, 355, 410, 524, 655, 710, 820, 1310, 1420, 2620, 2911, 5371, 5822, 9301, 10742, 11644, 14555, 18602, 21484, 26855, 29110, 37204, 46505, 53710, 58220, 93010, 107420, 186020, 381341, 762682, 1525364, 1906705, 3813410, 7626820]

約数ペア:

[(1, 7626820), (2, 3813410), (4, 1906705), (5, 1525364), (10, 762682), (20, 381341), (41, 186020), (71, 107420), (82, 93010), (131, 58220), (142, 53710), (164, 46505), (205, 37204), (262, 29110), (284, 26855), (355, 21484), (410, 18602), (524, 14555), (655, 11644), (710, 10742), (820, 9301), (1310, 5822), (1420, 5371), (2620, 2911)]