721726956

素因数分解:

$2^2\times 3^3\times {\mathrm{1999}}^1\times {\mathrm{3343}}^1$

素因数の和:5355

約数の個数: 48

約数和(自身を含む): 1872640000

約数和(自身を除く): 1150913044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 1999, 3343, 3998, 5997, 6686, 7996, 10029, 11994, 13372, 17991, 20058, 23988, 30087, 35982, 40116, 53973, 60174, 71964, 90261, 107946, 120348, 180522, 215892, 361044, 6682657, 13365314, 20047971, 26730628, 40095942, 60143913, 80191884, 120287826, 180431739, 240575652, 360863478, 721726956]

約数ペア:

[(1, 721726956), (2, 360863478), (3, 240575652), (4, 180431739), (6, 120287826), (9, 80191884), (12, 60143913), (18, 40095942), (27, 26730628), (36, 20047971), (54, 13365314), (108, 6682657), (1999, 361044), (3343, 215892), (3998, 180522), (5997, 120348), (6686, 107946), (7996, 90261), (10029, 71964), (11994, 60174), (13372, 53973), (17991, 40116), (20058, 35982), (23988, 30087)]