208805940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{165719}}^1$

素因数の和:165741

約数の個数: 72

約数和(自身を含む): 723864960

約数和(自身を除く): 515059020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 165719, 331438, 497157, 662876, 828595, 994314, 1160033, 1491471, 1657190, 1988628, 2320066, 2485785, 2982942, 3314380, 3480099, 4640132, 4971570, 5800165, 5965884, 6960198, 7457355, 9943140, 10440297, 11600330, 13920396, 14914710, 17400495, 20880594, 23200660, 29829420, 34800990, 41761188, 52201485, 69601980, 104402970, 208805940]

約数ペア:

[(1, 208805940), (2, 104402970), (3, 69601980), (4, 52201485), (5, 41761188), (6, 34800990), (7, 29829420), (9, 23200660), (10, 20880594), (12, 17400495), (14, 14914710), (15, 13920396), (18, 11600330), (20, 10440297), (21, 9943140), (28, 7457355), (30, 6960198), (35, 5965884), (36, 5800165), (42, 4971570), (45, 4640132), (60, 3480099), (63, 3314380), (70, 2982942), (84, 2485785), (90, 2320066), (105, 1988628), (126, 1657190), (140, 1491471), (180, 1160033), (210, 994314), (252, 828595), (315, 662876), (420, 497157), (630, 331438), (1260, 165719)]