1279661080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{743989}}^1$

素因数の和:744043

約数の個数: 32

約数和(自身を含む): 2946200400

約数和(自身を除く): 1666539320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 743989, 1487978, 2975956, 3719945, 5951912, 7439890, 14879780, 29759560, 31991527, 63983054, 127966108, 159957635, 255932216, 319915270, 639830540, 1279661080]

約数ペア:

[(1, 1279661080), (2, 639830540), (4, 319915270), (5, 255932216), (8, 159957635), (10, 127966108), (20, 63983054), (40, 31991527), (43, 29759560), (86, 14879780), (172, 7439890), (215, 5951912), (344, 3719945), (430, 2975956), (860, 1487978), (1720, 743989)]