8749720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31249}}^1$

素因数の和:31267

約数の個数: 32

約数和(自身を含む): 22500000

約数和(自身を除く): 13750280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 31249, 62498, 124996, 156245, 218743, 249992, 312490, 437486, 624980, 874972, 1093715, 1249960, 1749944, 2187430, 4374860, 8749720]

約数ペア:

[(1, 8749720), (2, 4374860), (4, 2187430), (5, 1749944), (7, 1249960), (8, 1093715), (10, 874972), (14, 624980), (20, 437486), (28, 312490), (35, 249992), (40, 218743), (56, 156245), (70, 124996), (140, 62498), (280, 31249)]