17691940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2579}}^1$

素因数の和:2609

約数の個数: 48

約数和(自身を含む): 43344000

約数和(自身を除く): 25652060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2579, 3430, 5158, 6860, 10316, 12895, 18053, 25790, 36106, 51580, 72212, 90265, 126371, 180530, 252742, 361060, 505484, 631855, 884597, 1263710, 1769194, 2527420, 3538388, 4422985, 8845970, 17691940]

約数ペア:

[(1, 17691940), (2, 8845970), (4, 4422985), (5, 3538388), (7, 2527420), (10, 1769194), (14, 1263710), (20, 884597), (28, 631855), (35, 505484), (49, 361060), (70, 252742), (98, 180530), (140, 126371), (196, 90265), (245, 72212), (343, 51580), (490, 36106), (686, 25790), (980, 18053), (1372, 12895), (1715, 10316), (2579, 6860), (3430, 5158)]