18960080

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{683}}^1$

素因数の和:1043

約数の個数: 40

約数和(自身を含む): 44273952

約数和(自身を除く): 25313872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 683, 694, 1366, 1388, 1735, 2732, 2776, 3415, 3470, 5464, 5552, 6830, 6940, 10928, 13660, 13880, 27320, 27760, 54640, 237001, 474002, 948004, 1185005, 1896008, 2370010, 3792016, 4740020, 9480040, 18960080]

約数ペア:

[(1, 18960080), (2, 9480040), (4, 4740020), (5, 3792016), (8, 2370010), (10, 1896008), (16, 1185005), (20, 948004), (40, 474002), (80, 237001), (347, 54640), (683, 27760), (694, 27320), (1366, 13880), (1388, 13660), (1735, 10928), (2732, 6940), (2776, 6830), (3415, 5552), (3470, 5464)]