87457720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{312349}}^1$

素因数の和:312367

約数の個数: 32

約数和(自身を含む): 224892000

約数和(自身を除く): 137434280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 312349, 624698, 1249396, 1561745, 2186443, 2498792, 3123490, 4372886, 6246980, 8745772, 10932215, 12493960, 17491544, 21864430, 43728860, 87457720]

約数ペア:

[(1, 87457720), (2, 43728860), (4, 21864430), (5, 17491544), (7, 12493960), (8, 10932215), (10, 8745772), (14, 6246980), (20, 4372886), (28, 3123490), (35, 2498792), (40, 2186443), (56, 1561745), (70, 1249396), (140, 624698), (280, 312349)]