20005937308

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1\times {\mathrm{68947}}^1$

素因数の和:69242

約数の個数: 48

約数和(自身を含む): 41112865024

約数和(自身を除く): 21106927716

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 241, 301, 482, 602, 964, 1204, 1687, 3374, 6748, 10363, 20726, 41452, 68947, 72541, 137894, 145082, 275788, 290164, 482629, 965258, 1930516, 2964721, 5929442, 11858884, 16616227, 20753047, 33232454, 41506094, 66464908, 83012188, 116313589, 232627178, 465254356, 714497761, 1428995522, 2857991044, 5001484327, 10002968654, 20005937308]

約数ペア:

[(1, 20005937308), (2, 10002968654), (4, 5001484327), (7, 2857991044), (14, 1428995522), (28, 714497761), (43, 465254356), (86, 232627178), (172, 116313589), (241, 83012188), (301, 66464908), (482, 41506094), (602, 33232454), (964, 20753047), (1204, 16616227), (1687, 11858884), (3374, 5929442), (6748, 2964721), (10363, 1930516), (20726, 965258), (41452, 482629), (68947, 290164), (72541, 275788), (137894, 145082)]