209936720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{374887}}^1$

素因数の和:374907

約数の個数: 40

約数和(自身を含む): 557833344

約数和(自身を除く): 347896624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 374887, 749774, 1499548, 1874435, 2624209, 2999096, 3748870, 5248418, 5998192, 7497740, 10496836, 13121045, 14995480, 20993672, 26242090, 29990960, 41987344, 52484180, 104968360, 209936720]

約数ペア:

[(1, 209936720), (2, 104968360), (4, 52484180), (5, 41987344), (7, 29990960), (8, 26242090), (10, 20993672), (14, 14995480), (16, 13121045), (20, 10496836), (28, 7497740), (35, 5998192), (40, 5248418), (56, 3748870), (70, 2999096), (80, 2624209), (112, 1874435), (140, 1499548), (280, 749774), (560, 374887)]