20219360

素因数分解:

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

素因数の和:2608

約数の個数: 72

約数和(自身を含む): 55588680

約数和(自身を除く): 35369320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2579, 3920, 5158, 7840, 10316, 12895, 18053, 20632, 25790, 36106, 41264, 51580, 72212, 82528, 90265, 103160, 126371, 144424, 180530, 206320, 252742, 288848, 361060, 412640, 505484, 577696, 631855, 722120, 1010968, 1263710, 1444240, 2021936, 2527420, 2888480, 4043872, 5054840, 10109680, 20219360]

約数ペア:

[(1, 20219360), (2, 10109680), (4, 5054840), (5, 4043872), (7, 2888480), (8, 2527420), (10, 2021936), (14, 1444240), (16, 1263710), (20, 1010968), (28, 722120), (32, 631855), (35, 577696), (40, 505484), (49, 412640), (56, 361060), (70, 288848), (80, 252742), (98, 206320), (112, 180530), (140, 144424), (160, 126371), (196, 103160), (224, 90265), (245, 82528), (280, 72212), (392, 51580), (490, 41264), (560, 36106), (784, 25790), (980, 20632), (1120, 18053), (1568, 12895), (1960, 10316), (2579, 7840), (3920, 5158)]