142796220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{339991}}^1$

素因数の和:340010

約数の個数: 48

約数和(自身を含む): 456949248

約数和(自身を除く): 314153028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 339991, 679982, 1019973, 1359964, 1699955, 2039946, 2379937, 3399910, 4079892, 4759874, 5099865, 6799820, 7139811, 9519748, 10199730, 11899685, 14279622, 20399460, 23799370, 28559244, 35699055, 47598740, 71398110, 142796220]

約数ペア:

[(1, 142796220), (2, 71398110), (3, 47598740), (4, 35699055), (5, 28559244), (6, 23799370), (7, 20399460), (10, 14279622), (12, 11899685), (14, 10199730), (15, 9519748), (20, 7139811), (21, 6799820), (28, 5099865), (30, 4759874), (35, 4079892), (42, 3399910), (60, 2379937), (70, 2039946), (84, 1699955), (105, 1359964), (140, 1019973), (210, 679982), (420, 339991)]