21088080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:786

約数の個数: 160

約数和(自身を含む): 78328320

約数和(自身を除く): 57240240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 751, 780, 936, 1040, 1080, 1170, 1404, 1502, 1560, 1755, 1872, 2160, 2253, 2340, 2808, 3004, 3120, 3510, 3755, 4506, 4680, 5616, 6008, 6759, 7020, 7510, 9012, 9360, 9763, 11265, 12016, 13518, 14040, 15020, 18024, 19526, 20277, 22530, 27036, 28080, 29289, 30040, 33795, 36048, 39052, 40554, 45060, 48815, 54072, 58578, 60080, 67590, 78104, 81108, 87867, 90120, 97630, 101385, 108144, 117156, 135180, 146445, 156208, 162216, 175734, 180240, 195260, 202770, 234312, 263601, 270360, 292890, 324432, 351468, 390520, 405540, 439335, 468624, 527202, 540720, 585780, 702936, 781040, 811080, 878670, 1054404, 1171560, 1318005, 1405872, 1622160, 1757340, 2108808, 2343120, 2636010, 3514680, 4217616, 5272020, 7029360, 10544040, 21088080]

約数ペア:

[(1, 21088080), (2, 10544040), (3, 7029360), (4, 5272020), (5, 4217616), (6, 3514680), (8, 2636010), (9, 2343120), (10, 2108808), (12, 1757340), (13, 1622160), (15, 1405872), (16, 1318005), (18, 1171560), (20, 1054404), (24, 878670), (26, 811080), (27, 781040), (30, 702936), (36, 585780), (39, 540720), (40, 527202), (45, 468624), (48, 439335), (52, 405540), (54, 390520), (60, 351468), (65, 324432), (72, 292890), (78, 270360), (80, 263601), (90, 234312), (104, 202770), (108, 195260), (117, 180240), (120, 175734), (130, 162216), (135, 156208), (144, 146445), (156, 135180), (180, 117156), (195, 108144), (208, 101385), (216, 97630), (234, 90120), (240, 87867), (260, 81108), (270, 78104), (312, 67590), (351, 60080), (360, 58578), (390, 54072), (432, 48815), (468, 45060), (520, 40554), (540, 39052), (585, 36048), (624, 33795), (702, 30040), (720, 29289), (751, 28080), (780, 27036), (936, 22530), (1040, 20277), (1080, 19526), (1170, 18024), (1404, 15020), (1502, 14040), (1560, 13518), (1755, 12016), (1872, 11265), (2160, 9763), (2253, 9360), (2340, 9012), (2808, 7510), (3004, 7020), (3120, 6759), (3510, 6008), (3755, 5616), (4506, 4680)]