19700960

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7243}}^1$

素因数の和:7275

約数の個数: 48

約数和(自身を含む): 49288176

約数和(自身を除く): 29587216

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, 7243, 14486, 28972, 36215, 57944, 72430, 115888, 123131, 144860, 231776, 246262, 289720, 492524, 579440, 615655, 985048, 1158880, 1231310, 1970096, 2462620, 3940192, 4925240, 9850480, 19700960]

約数ペア:

[(1, 19700960), (2, 9850480), (4, 4925240), (5, 3940192), (8, 2462620), (10, 1970096), (16, 1231310), (17, 1158880), (20, 985048), (32, 615655), (34, 579440), (40, 492524), (68, 289720), (80, 246262), (85, 231776), (136, 144860), (160, 123131), (170, 115888), (272, 72430), (340, 57944), (544, 36215), (680, 28972), (1360, 14486), (2720, 7243)]