9905000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{283}}^1$

素因数の和:316

約数の個数: 80

約数和(自身を含む): 26616480

約数和(自身を除く): 16711480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 283, 350, 500, 566, 625, 700, 875, 1000, 1132, 1250, 1400, 1415, 1750, 1981, 2264, 2500, 2830, 3500, 3962, 4375, 5000, 5660, 7000, 7075, 7924, 8750, 9905, 11320, 14150, 15848, 17500, 19810, 28300, 35000, 35375, 39620, 49525, 56600, 70750, 79240, 99050, 141500, 176875, 198100, 247625, 283000, 353750, 396200, 495250, 707500, 990500, 1238125, 1415000, 1981000, 2476250, 4952500, 9905000]

約数ペア:

[(1, 9905000), (2, 4952500), (4, 2476250), (5, 1981000), (7, 1415000), (8, 1238125), (10, 990500), (14, 707500), (20, 495250), (25, 396200), (28, 353750), (35, 283000), (40, 247625), (50, 198100), (56, 176875), (70, 141500), (100, 99050), (125, 79240), (140, 70750), (175, 56600), (200, 49525), (250, 39620), (280, 35375), (283, 35000), (350, 28300), (500, 19810), (566, 17500), (625, 15848), (700, 14150), (875, 11320), (1000, 9905), (1132, 8750), (1250, 7924), (1400, 7075), (1415, 7000), (1750, 5660), (1981, 5000), (2264, 4375), (2500, 3962), (2830, 3500)]