348580520

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{66523}}^1$

素因数の和:66665

約数の個数: 32

約数和(自身を含む): 790305120

約数和(自身を除く): 441724600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 66523, 133046, 266092, 332615, 532184, 665230, 1330460, 2660920, 8714513, 17429026, 34858052, 43572565, 69716104, 87145130, 174290260, 348580520]

約数ペア:

[(1, 348580520), (2, 174290260), (4, 87145130), (5, 69716104), (8, 43572565), (10, 34858052), (20, 17429026), (40, 8714513), (131, 2660920), (262, 1330460), (524, 665230), (655, 532184), (1048, 332615), (1310, 266092), (2620, 133046), (5240, 66523)]