131219340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{312427}}^1$

素因数の和:312446

約数の個数: 48

約数和(自身を含む): 419903232

約数和(自身を除く): 288683892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 312427, 624854, 937281, 1249708, 1562135, 1874562, 2186989, 3124270, 3749124, 4373978, 4686405, 6248540, 6560967, 8747956, 9372810, 10934945, 13121934, 18745620, 21869890, 26243868, 32804835, 43739780, 65609670, 131219340]

約数ペア:

[(1, 131219340), (2, 65609670), (3, 43739780), (4, 32804835), (5, 26243868), (6, 21869890), (7, 18745620), (10, 13121934), (12, 10934945), (14, 9372810), (15, 8747956), (20, 6560967), (21, 6248540), (28, 4686405), (30, 4373978), (35, 3749124), (42, 3124270), (60, 2186989), (70, 1874562), (84, 1562135), (105, 1249708), (140, 937281), (210, 624854), (420, 312427)]