20012655250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{144757}}^1$

素因数の和:144860

約数の個数: 64

約数和(自身を含む): 43357916160

約数和(自身を除く): 23345260910

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 79, 125, 158, 175, 250, 350, 395, 553, 790, 875, 1106, 1750, 1975, 2765, 3950, 5530, 9875, 13825, 19750, 27650, 69125, 138250, 144757, 289514, 723785, 1013299, 1447570, 2026598, 3618925, 5066495, 7237850, 10132990, 11435803, 18094625, 22871606, 25332475, 36189250, 50664950, 57179015, 80050621, 114358030, 126662375, 160101242, 253324750, 285895075, 400253105, 571790150, 800506210, 1429475375, 2001265525, 2858950750, 4002531050, 10006327625, 20012655250]

約数ペア:

[(1, 20012655250), (2, 10006327625), (5, 4002531050), (7, 2858950750), (10, 2001265525), (14, 1429475375), (25, 800506210), (35, 571790150), (50, 400253105), (70, 285895075), (79, 253324750), (125, 160101242), (158, 126662375), (175, 114358030), (250, 80050621), (350, 57179015), (395, 50664950), (553, 36189250), (790, 25332475), (875, 22871606), (1106, 18094625), (1750, 11435803), (1975, 10132990), (2765, 7237850), (3950, 5066495), (5530, 3618925), (9875, 2026598), (13825, 1447570), (19750, 1013299), (27650, 723785), (69125, 289514), (138250, 144757)]