18748870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 39817008

約数和(自身を除く): 21068138

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 83, 98, 166, 245, 415, 461, 490, 581, 830, 922, 1162, 2305, 2905, 3227, 4067, 4610, 5810, 6454, 8134, 16135, 20335, 22589, 32270, 38263, 40670, 45178, 76526, 112945, 191315, 225890, 267841, 382630, 535682, 1339205, 1874887, 2678410, 3749774, 9374435, 18748870]

約数ペア:

[(1, 18748870), (2, 9374435), (5, 3749774), (7, 2678410), (10, 1874887), (14, 1339205), (35, 535682), (49, 382630), (70, 267841), (83, 225890), (98, 191315), (166, 112945), (245, 76526), (415, 45178), (461, 40670), (490, 38263), (581, 32270), (830, 22589), (922, 20335), (1162, 16135), (2305, 8134), (2905, 6454), (3227, 5810), (4067, 4610)]