19712360

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1069}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 44490600

約数和(自身を除く): 24778240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1069, 1844, 2138, 2305, 3688, 4276, 4610, 5345, 8552, 9220, 10690, 18440, 21380, 42760, 492809, 985618, 1971236, 2464045, 3942472, 4928090, 9856180, 19712360]

約数ペア:

[(1, 19712360), (2, 9856180), (4, 4928090), (5, 3942472), (8, 2464045), (10, 1971236), (20, 985618), (40, 492809), (461, 42760), (922, 21380), (1069, 18440), (1844, 10690), (2138, 9220), (2305, 8552), (3688, 5345), (4276, 4610)]