30989000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:280

約数の個数: 128

約数和(自身を含む): 87609600

約数和(自身を除く): 56620600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 35, 38, 40, 50, 56, 70, 76, 95, 100, 125, 133, 140, 152, 175, 190, 200, 233, 250, 266, 280, 350, 380, 466, 475, 500, 532, 665, 700, 760, 875, 932, 950, 1000, 1064, 1165, 1330, 1400, 1631, 1750, 1864, 1900, 2330, 2375, 2660, 3262, 3325, 3500, 3800, 4427, 4660, 4750, 5320, 5825, 6524, 6650, 7000, 8155, 8854, 9320, 9500, 11650, 13048, 13300, 16310, 16625, 17708, 19000, 22135, 23300, 26600, 29125, 30989, 32620, 33250, 35416, 40775, 44270, 46600, 58250, 61978, 65240, 66500, 81550, 88540, 110675, 116500, 123956, 133000, 154945, 163100, 177080, 203875, 221350, 233000, 247912, 309890, 326200, 407750, 442700, 553375, 619780, 774725, 815500, 885400, 1106750, 1239560, 1549450, 1631000, 2213500, 3098900, 3873625, 4427000, 6197800, 7747250, 15494500, 30989000]

約数ペア:

[(1, 30989000), (2, 15494500), (4, 7747250), (5, 6197800), (7, 4427000), (8, 3873625), (10, 3098900), (14, 2213500), (19, 1631000), (20, 1549450), (25, 1239560), (28, 1106750), (35, 885400), (38, 815500), (40, 774725), (50, 619780), (56, 553375), (70, 442700), (76, 407750), (95, 326200), (100, 309890), (125, 247912), (133, 233000), (140, 221350), (152, 203875), (175, 177080), (190, 163100), (200, 154945), (233, 133000), (250, 123956), (266, 116500), (280, 110675), (350, 88540), (380, 81550), (466, 66500), (475, 65240), (500, 61978), (532, 58250), (665, 46600), (700, 44270), (760, 40775), (875, 35416), (932, 33250), (950, 32620), (1000, 30989), (1064, 29125), (1165, 26600), (1330, 23300), (1400, 22135), (1631, 19000), (1750, 17708), (1864, 16625), (1900, 16310), (2330, 13300), (2375, 13048), (2660, 11650), (3262, 9500), (3325, 9320), (3500, 8854), (3800, 8155), (4427, 7000), (4660, 6650), (4750, 6524), (5320, 5825)]