20489000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2927}}^1$

素因数の和:2955

約数の個数: 64

約数和(自身を含む): 54812160

約数和(自身を除く): 34323160

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, 350, 500, 700, 875, 1000, 1400, 1750, 2927, 3500, 5854, 7000, 11708, 14635, 20489, 23416, 29270, 40978, 58540, 73175, 81956, 102445, 117080, 146350, 163912, 204890, 292700, 365875, 409780, 512225, 585400, 731750, 819560, 1024450, 1463500, 2048900, 2561125, 2927000, 4097800, 5122250, 10244500, 20489000]

約数ペア:

[(1, 20489000), (2, 10244500), (4, 5122250), (5, 4097800), (7, 2927000), (8, 2561125), (10, 2048900), (14, 1463500), (20, 1024450), (25, 819560), (28, 731750), (35, 585400), (40, 512225), (50, 409780), (56, 365875), (70, 292700), (100, 204890), (125, 163912), (140, 146350), (175, 117080), (200, 102445), (250, 81956), (280, 73175), (350, 58540), (500, 40978), (700, 29270), (875, 23416), (1000, 20489), (1400, 14635), (1750, 11708), (2927, 7000), (3500, 5854)]