19751240

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1423}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 44599680

約数和(自身を除く): 24848440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1423, 1735, 2776, 2846, 3470, 5692, 6940, 7115, 11384, 13880, 14230, 28460, 56920, 493781, 987562, 1975124, 2468905, 3950248, 4937810, 9875620, 19751240]

約数ペア:

[(1, 19751240), (2, 9875620), (4, 4937810), (5, 3950248), (8, 2468905), (10, 1975124), (20, 987562), (40, 493781), (347, 56920), (694, 28460), (1388, 14230), (1423, 13880), (1735, 11384), (2776, 7115), (2846, 6940), (3470, 5692)]