129237080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{461561}}^1$

素因数の和:461579

約数の個数: 32

約数和(自身を含む): 332324640

約数和(自身を除く): 203087560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 461561, 923122, 1846244, 2307805, 3230927, 3692488, 4615610, 6461854, 9231220, 12923708, 16154635, 18462440, 25847416, 32309270, 64618540, 129237080]

約数ペア:

[(1, 129237080), (2, 64618540), (4, 32309270), (5, 25847416), (7, 18462440), (8, 16154635), (10, 12923708), (14, 9231220), (20, 6461854), (28, 4615610), (35, 3692488), (40, 3230927), (56, 2307805), (70, 1846244), (140, 923122), (280, 461561)]