1281699440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2288749}}^1$

素因数の和:2288769

約数の個数: 40

約数和(自身を含む): 3405660000

約数和(自身を除く): 2123960560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2288749, 4577498, 9154996, 11443745, 16021243, 18309992, 22887490, 32042486, 36619984, 45774980, 64084972, 80106215, 91549960, 128169944, 160212430, 183099920, 256339888, 320424860, 640849720, 1281699440]

約数ペア:

[(1, 1281699440), (2, 640849720), (4, 320424860), (5, 256339888), (7, 183099920), (8, 160212430), (10, 128169944), (14, 91549960), (16, 80106215), (20, 64084972), (28, 45774980), (35, 36619984), (40, 32042486), (56, 22887490), (70, 18309992), (80, 16021243), (112, 11443745), (140, 9154996), (280, 4577498), (560, 2288749)]