81492810

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{1381}}^1$

素因数の和:1679

約数の個数: 64

約数和(自身を含む): 224481024

約数和(自身を除く): 142988214

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 281, 562, 843, 1381, 1405, 1686, 1967, 2762, 2810, 3934, 4143, 4215, 5901, 6905, 8286, 8430, 9667, 9835, 11802, 13810, 19334, 19670, 20715, 29001, 29505, 41430, 48335, 58002, 59010, 96670, 145005, 290010, 388061, 776122, 1164183, 1940305, 2328366, 2716427, 3880610, 5432854, 5820915, 8149281, 11641830, 13582135, 16298562, 27164270, 40746405, 81492810]

約数ペア:

[(1, 81492810), (2, 40746405), (3, 27164270), (5, 16298562), (6, 13582135), (7, 11641830), (10, 8149281), (14, 5820915), (15, 5432854), (21, 3880610), (30, 2716427), (35, 2328366), (42, 1940305), (70, 1164183), (105, 776122), (210, 388061), (281, 290010), (562, 145005), (843, 96670), (1381, 59010), (1405, 58002), (1686, 48335), (1967, 41430), (2762, 29505), (2810, 29001), (3934, 20715), (4143, 19670), (4215, 19334), (5901, 13810), (6905, 11802), (8286, 9835), (8430, 9667)]