20609440

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7577}}^1$

素因数の和:7609

約数の個数: 48

約数和(自身を含む): 51560712

約数和(自身を除く): 30951272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 7577, 15154, 30308, 37885, 60616, 75770, 121232, 128809, 151540, 242464, 257618, 303080, 515236, 606160, 644045, 1030472, 1212320, 1288090, 2060944, 2576180, 4121888, 5152360, 10304720, 20609440]

約数ペア:

[(1, 20609440), (2, 10304720), (4, 5152360), (5, 4121888), (8, 2576180), (10, 2060944), (16, 1288090), (17, 1212320), (20, 1030472), (32, 644045), (34, 606160), (40, 515236), (68, 303080), (80, 257618), (85, 242464), (136, 151540), (160, 128809), (170, 121232), (272, 75770), (340, 60616), (544, 37885), (680, 30308), (1360, 15154), (2720, 7577)]