205339995

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1103}}^1$

素因数の和:1321

約数の個数: 64

約数和(自身を含む): 419696640

約数和(自身を除く): 214356645

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 197, 315, 591, 945, 985, 1103, 1379, 1773, 2955, 3309, 4137, 5319, 5515, 6895, 7721, 8865, 9927, 12411, 16545, 20685, 23163, 26595, 29781, 37233, 38605, 49635, 62055, 69489, 115815, 148905, 186165, 208467, 217291, 347445, 651873, 1042335, 1086455, 1521037, 1955619, 3259365, 4563111, 5866857, 7605185, 9778095, 13689333, 22815555, 29334285, 41067999, 68446665, 205339995]

約数ペア:

[(1, 205339995), (3, 68446665), (5, 41067999), (7, 29334285), (9, 22815555), (15, 13689333), (21, 9778095), (27, 7605185), (35, 5866857), (45, 4563111), (63, 3259365), (105, 1955619), (135, 1521037), (189, 1086455), (197, 1042335), (315, 651873), (591, 347445), (945, 217291), (985, 208467), (1103, 186165), (1379, 148905), (1773, 115815), (2955, 69489), (3309, 62055), (4137, 49635), (5319, 38605), (5515, 37233), (6895, 29781), (7721, 26595), (8865, 23163), (9927, 20685), (12411, 16545)]