129979640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{464213}}^1$

素因数の和:464231

約数の個数: 32

約数和(自身を含む): 334234080

約数和(自身を除く): 204254440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 464213, 928426, 1856852, 2321065, 3249491, 3713704, 4642130, 6498982, 9284260, 12997964, 16247455, 18568520, 25995928, 32494910, 64989820, 129979640]

約数ペア:

[(1, 129979640), (2, 64989820), (4, 32494910), (5, 25995928), (7, 18568520), (8, 16247455), (10, 12997964), (14, 9284260), (20, 6498982), (28, 4642130), (35, 3713704), (40, 3249491), (56, 2321065), (70, 1856852), (140, 928426), (280, 464213)]