20472972

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 51744000

約数和(自身を除く): 31271028

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 263, 499, 526, 789, 998, 1052, 1497, 1578, 1996, 2994, 3156, 3419, 5988, 6487, 6838, 10257, 12974, 13676, 19461, 20514, 25948, 38922, 41028, 77844, 131237, 262474, 393711, 524948, 787422, 1574844, 1706081, 3412162, 5118243, 6824324, 10236486, 20472972]

約数ペア:

[(1, 20472972), (2, 10236486), (3, 6824324), (4, 5118243), (6, 3412162), (12, 1706081), (13, 1574844), (26, 787422), (39, 524948), (52, 393711), (78, 262474), (156, 131237), (263, 77844), (499, 41028), (526, 38922), (789, 25948), (998, 20514), (1052, 19461), (1497, 13676), (1578, 12974), (1996, 10257), (2994, 6838), (3156, 6487), (3419, 5988)]