19786340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1789}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 48115200

約数和(自身を除く): 28328860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1789, 2212, 2765, 3578, 5530, 7156, 8945, 11060, 12523, 17890, 25046, 35780, 50092, 62615, 125230, 141331, 250460, 282662, 565324, 706655, 989317, 1413310, 1978634, 2826620, 3957268, 4946585, 9893170, 19786340]

約数ペア:

[(1, 19786340), (2, 9893170), (4, 4946585), (5, 3957268), (7, 2826620), (10, 1978634), (14, 1413310), (20, 989317), (28, 706655), (35, 565324), (70, 282662), (79, 250460), (140, 141331), (158, 125230), (316, 62615), (395, 50092), (553, 35780), (790, 25046), (1106, 17890), (1580, 12523), (1789, 11060), (2212, 8945), (2765, 7156), (3578, 5530)]