261040080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155381}}^1$

素因数の和:155404

約数の個数: 80

約数和(自身を含む): 924833664

約数和(自身を除く): 663793584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155381, 310762, 466143, 621524, 776905, 932286, 1087667, 1243048, 1553810, 1864572, 2175334, 2330715, 2486096, 3107620, 3263001, 3729144, 4350668, 4661430, 5438335, 6215240, 6526002, 7458288, 8701336, 9322860, 10876670, 12430480, 13052004, 16315005, 17402672, 18645720, 21753340, 26104008, 32630010, 37291440, 43506680, 52208016, 65260020, 87013360, 130520040, 261040080]

約数ペア:

[(1, 261040080), (2, 130520040), (3, 87013360), (4, 65260020), (5, 52208016), (6, 43506680), (7, 37291440), (8, 32630010), (10, 26104008), (12, 21753340), (14, 18645720), (15, 17402672), (16, 16315005), (20, 13052004), (21, 12430480), (24, 10876670), (28, 9322860), (30, 8701336), (35, 7458288), (40, 6526002), (42, 6215240), (48, 5438335), (56, 4661430), (60, 4350668), (70, 3729144), (80, 3263001), (84, 3107620), (105, 2486096), (112, 2330715), (120, 2175334), (140, 1864572), (168, 1553810), (210, 1243048), (240, 1087667), (280, 932286), (336, 776905), (420, 621524), (560, 466143), (840, 310762), (1680, 155381)]