142724820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{339821}}^1$

素因数の和:339840

約数の個数: 48

約数和(自身を含む): 456720768

約数和(自身を除く): 313995948

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, 339821, 679642, 1019463, 1359284, 1699105, 2038926, 2378747, 3398210, 4077852, 4757494, 5097315, 6796420, 7136241, 9514988, 10194630, 11893735, 14272482, 20389260, 23787470, 28544964, 35681205, 47574940, 71362410, 142724820]

約数ペア:

[(1, 142724820), (2, 71362410), (3, 47574940), (4, 35681205), (5, 28544964), (6, 23787470), (7, 20389260), (10, 14272482), (12, 11893735), (14, 10194630), (15, 9514988), (20, 7136241), (21, 6796420), (28, 5097315), (30, 4757494), (35, 4077852), (42, 3398210), (60, 2378747), (70, 2038926), (84, 1699105), (105, 1359284), (140, 1019463), (210, 679642), (420, 339821)]