1258880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{281}}^1$

素因数の和:307

約数の個数: 64

約数和(自身を含む): 3451680

約数和(自身を除く): 2192800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 281, 320, 448, 560, 562, 640, 896, 1120, 1124, 1405, 1967, 2240, 2248, 2810, 3934, 4480, 4496, 5620, 7868, 8992, 9835, 11240, 15736, 17984, 19670, 22480, 31472, 35968, 39340, 44960, 62944, 78680, 89920, 125888, 157360, 179840, 251776, 314720, 629440, 1258880]

約数ペア:

[(1, 1258880), (2, 629440), (4, 314720), (5, 251776), (7, 179840), (8, 157360), (10, 125888), (14, 89920), (16, 78680), (20, 62944), (28, 44960), (32, 39340), (35, 35968), (40, 31472), (56, 22480), (64, 19670), (70, 17984), (80, 15736), (112, 11240), (128, 9835), (140, 8992), (160, 7868), (224, 5620), (280, 4496), (281, 4480), (320, 3934), (448, 2810), (560, 2248), (562, 2240), (640, 1967), (896, 1405), (1120, 1124)]