85981000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:272

約数の個数: 128

約数和(自身を含む): 234524160

約数和(自身を除く): 148543160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 71, 100, 125, 140, 142, 173, 175, 200, 250, 280, 284, 346, 350, 355, 497, 500, 568, 692, 700, 710, 865, 875, 994, 1000, 1211, 1384, 1400, 1420, 1730, 1750, 1775, 1988, 2422, 2485, 2840, 3460, 3500, 3550, 3976, 4325, 4844, 4970, 6055, 6920, 7000, 7100, 8650, 8875, 9688, 9940, 12110, 12283, 12425, 14200, 17300, 17750, 19880, 21625, 24220, 24566, 24850, 30275, 34600, 35500, 43250, 48440, 49132, 49700, 60550, 61415, 62125, 71000, 85981, 86500, 98264, 99400, 121100, 122830, 124250, 151375, 171962, 173000, 242200, 245660, 248500, 302750, 307075, 343924, 429905, 491320, 497000, 605500, 614150, 687848, 859810, 1211000, 1228300, 1535375, 1719620, 2149525, 2456600, 3070750, 3439240, 4299050, 6141500, 8598100, 10747625, 12283000, 17196200, 21495250, 42990500, 85981000]

約数ペア:

[(1, 85981000), (2, 42990500), (4, 21495250), (5, 17196200), (7, 12283000), (8, 10747625), (10, 8598100), (14, 6141500), (20, 4299050), (25, 3439240), (28, 3070750), (35, 2456600), (40, 2149525), (50, 1719620), (56, 1535375), (70, 1228300), (71, 1211000), (100, 859810), (125, 687848), (140, 614150), (142, 605500), (173, 497000), (175, 491320), (200, 429905), (250, 343924), (280, 307075), (284, 302750), (346, 248500), (350, 245660), (355, 242200), (497, 173000), (500, 171962), (568, 151375), (692, 124250), (700, 122830), (710, 121100), (865, 99400), (875, 98264), (994, 86500), (1000, 85981), (1211, 71000), (1384, 62125), (1400, 61415), (1420, 60550), (1730, 49700), (1750, 49132), (1775, 48440), (1988, 43250), (2422, 35500), (2485, 34600), (2840, 30275), (3460, 24850), (3500, 24566), (3550, 24220), (3976, 21625), (4325, 19880), (4844, 17750), (4970, 17300), (6055, 14200), (6920, 12425), (7000, 12283), (7100, 12110), (8650, 9940), (8875, 9688)]