28081080

素因数分解:

$2^3\times 3^8\times 5^1\times {\mathrm{107}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 95654520

約数和(自身を除く): 67573440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 107, 108, 120, 135, 162, 180, 214, 216, 243, 270, 321, 324, 360, 405, 428, 486, 535, 540, 642, 648, 729, 810, 856, 963, 972, 1070, 1080, 1215, 1284, 1458, 1605, 1620, 1926, 1944, 2140, 2187, 2430, 2568, 2889, 2916, 3210, 3240, 3645, 3852, 4280, 4374, 4815, 4860, 5778, 5832, 6420, 6561, 7290, 7704, 8667, 8748, 9630, 9720, 10935, 11556, 12840, 13122, 14445, 14580, 17334, 17496, 19260, 21870, 23112, 26001, 26244, 28890, 29160, 32805, 34668, 38520, 43335, 43740, 52002, 52488, 57780, 65610, 69336, 78003, 86670, 87480, 104004, 115560, 130005, 131220, 156006, 173340, 208008, 234009, 260010, 262440, 312012, 346680, 390015, 468018, 520020, 624024, 702027, 780030, 936036, 1040040, 1170045, 1404054, 1560060, 1872072, 2340090, 2808108, 3120120, 3510135, 4680180, 5616216, 7020270, 9360360, 14040540, 28081080]

約数ペア:

[(1, 28081080), (2, 14040540), (3, 9360360), (4, 7020270), (5, 5616216), (6, 4680180), (8, 3510135), (9, 3120120), (10, 2808108), (12, 2340090), (15, 1872072), (18, 1560060), (20, 1404054), (24, 1170045), (27, 1040040), (30, 936036), (36, 780030), (40, 702027), (45, 624024), (54, 520020), (60, 468018), (72, 390015), (81, 346680), (90, 312012), (107, 262440), (108, 260010), (120, 234009), (135, 208008), (162, 173340), (180, 156006), (214, 131220), (216, 130005), (243, 115560), (270, 104004), (321, 87480), (324, 86670), (360, 78003), (405, 69336), (428, 65610), (486, 57780), (535, 52488), (540, 52002), (642, 43740), (648, 43335), (729, 38520), (810, 34668), (856, 32805), (963, 29160), (972, 28890), (1070, 26244), (1080, 26001), (1215, 23112), (1284, 21870), (1458, 19260), (1605, 17496), (1620, 17334), (1926, 14580), (1944, 14445), (2140, 13122), (2187, 12840), (2430, 11556), (2568, 10935), (2889, 9720), (2916, 9630), (3210, 8748), (3240, 8667), (3645, 7704), (3852, 7290), (4280, 6561), (4374, 6420), (4815, 5832), (4860, 5778)]