20123343220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1721}}^1\times {\mathrm{6569}}^1$

素因数の和:8388

約数の個数: 48

約数和(自身を含む): 42765181200

約数和(自身を除く): 22641837980

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1721, 1780, 3442, 6569, 6884, 8605, 13138, 17210, 26276, 32845, 34420, 65690, 131380, 153169, 306338, 584641, 612676, 765845, 1169282, 1531690, 2338564, 2923205, 3063380, 5846410, 11305249, 11692820, 22610498, 45220996, 56526245, 113052490, 226104980, 1006167161, 2012334322, 4024668644, 5030835805, 10061671610, 20123343220]

約数ペア:

[(1, 20123343220), (2, 10061671610), (4, 5030835805), (5, 4024668644), (10, 2012334322), (20, 1006167161), (89, 226104980), (178, 113052490), (356, 56526245), (445, 45220996), (890, 22610498), (1721, 11692820), (1780, 11305249), (3442, 5846410), (6569, 3063380), (6884, 2923205), (8605, 2338564), (13138, 1531690), (17210, 1169282), (26276, 765845), (32845, 612676), (34420, 584641), (65690, 306338), (131380, 153169)]