2012399120

素因数分解:

$2^4\times 5^1\times {\mathrm{239}}^1\times {\mathrm{105251}}^1$

素因数の和:105503

約数の個数: 40

約数和(自身を含む): 4698449280

約数和(自身を除く): 2686050160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 239, 478, 956, 1195, 1912, 2390, 3824, 4780, 9560, 19120, 105251, 210502, 421004, 526255, 842008, 1052510, 1684016, 2105020, 4210040, 8420080, 25154989, 50309978, 100619956, 125774945, 201239912, 251549890, 402479824, 503099780, 1006199560, 2012399120]

約数ペア:

[(1, 2012399120), (2, 1006199560), (4, 503099780), (5, 402479824), (8, 251549890), (10, 201239912), (16, 125774945), (20, 100619956), (40, 50309978), (80, 25154989), (239, 8420080), (478, 4210040), (956, 2105020), (1195, 1684016), (1912, 1052510), (2390, 842008), (3824, 526255), (4780, 421004), (9560, 210502), (19120, 105251)]