17191240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 25576760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 439, 440, 445, 712, 878, 890, 979, 1756, 1780, 1958, 2195, 3512, 3560, 3916, 4390, 4829, 4895, 7832, 8780, 9658, 9790, 17560, 19316, 19580, 24145, 38632, 39071, 39160, 48290, 78142, 96580, 156284, 193160, 195355, 312568, 390710, 429781, 781420, 859562, 1562840, 1719124, 2148905, 3438248, 4297810, 8595620, 17191240]

約数ペア:

[(1, 17191240), (2, 8595620), (4, 4297810), (5, 3438248), (8, 2148905), (10, 1719124), (11, 1562840), (20, 859562), (22, 781420), (40, 429781), (44, 390710), (55, 312568), (88, 195355), (89, 193160), (110, 156284), (178, 96580), (220, 78142), (356, 48290), (439, 39160), (440, 39071), (445, 38632), (712, 24145), (878, 19580), (890, 19316), (979, 17560), (1756, 9790), (1780, 9658), (1958, 8780), (2195, 7832), (3512, 4895), (3560, 4829), (3916, 4390)]