20453265

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2239}}^1$

素因数の和:2286

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 21479535

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2239, 3045, 6717, 9135, 11195, 15673, 20151, 33585, 47019, 64931, 78365, 100755, 141057, 194793, 235095, 324655, 454517, 584379, 705285, 973965, 1363551, 2272585, 2921895, 4090653, 6817755, 20453265]

約数ペア:

[(1, 20453265), (3, 6817755), (5, 4090653), (7, 2921895), (9, 2272585), (15, 1363551), (21, 973965), (29, 705285), (35, 584379), (45, 454517), (63, 324655), (87, 235095), (105, 194793), (145, 141057), (203, 100755), (261, 78365), (315, 64931), (435, 47019), (609, 33585), (1015, 20151), (1305, 15673), (1827, 11195), (2239, 9135), (3045, 6717)]