21865680

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:266

約数の個数: 160

約数和(自身を含む): 77137920

約数和(自身を除く): 55272240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 53, 54, 60, 72, 80, 90, 106, 108, 120, 135, 144, 159, 180, 191, 212, 216, 240, 265, 270, 318, 360, 382, 424, 432, 477, 530, 540, 573, 636, 720, 764, 795, 848, 954, 955, 1060, 1080, 1146, 1272, 1431, 1528, 1590, 1719, 1908, 1910, 2120, 2160, 2292, 2385, 2544, 2862, 2865, 3056, 3180, 3438, 3816, 3820, 4240, 4584, 4770, 5157, 5724, 5730, 6360, 6876, 7155, 7632, 7640, 8595, 9168, 9540, 10123, 10314, 11448, 11460, 12720, 13752, 14310, 15280, 17190, 19080, 20246, 20628, 22896, 22920, 25785, 27504, 28620, 30369, 34380, 38160, 40492, 41256, 45840, 50615, 51570, 57240, 60738, 68760, 80984, 82512, 91107, 101230, 103140, 114480, 121476, 137520, 151845, 161968, 182214, 202460, 206280, 242952, 273321, 303690, 364428, 404920, 412560, 455535, 485904, 546642, 607380, 728856, 809840, 911070, 1093284, 1214760, 1366605, 1457712, 1822140, 2186568, 2429520, 2733210, 3644280, 4373136, 5466420, 7288560, 10932840, 21865680]

約数ペア:

[(1, 21865680), (2, 10932840), (3, 7288560), (4, 5466420), (5, 4373136), (6, 3644280), (8, 2733210), (9, 2429520), (10, 2186568), (12, 1822140), (15, 1457712), (16, 1366605), (18, 1214760), (20, 1093284), (24, 911070), (27, 809840), (30, 728856), (36, 607380), (40, 546642), (45, 485904), (48, 455535), (53, 412560), (54, 404920), (60, 364428), (72, 303690), (80, 273321), (90, 242952), (106, 206280), (108, 202460), (120, 182214), (135, 161968), (144, 151845), (159, 137520), (180, 121476), (191, 114480), (212, 103140), (216, 101230), (240, 91107), (265, 82512), (270, 80984), (318, 68760), (360, 60738), (382, 57240), (424, 51570), (432, 50615), (477, 45840), (530, 41256), (540, 40492), (573, 38160), (636, 34380), (720, 30369), (764, 28620), (795, 27504), (848, 25785), (954, 22920), (955, 22896), (1060, 20628), (1080, 20246), (1146, 19080), (1272, 17190), (1431, 15280), (1528, 14310), (1590, 13752), (1719, 12720), (1908, 11460), (1910, 11448), (2120, 10314), (2160, 10123), (2292, 9540), (2385, 9168), (2544, 8595), (2862, 7640), (2865, 7632), (3056, 7155), (3180, 6876), (3438, 6360), (3816, 5730), (3820, 5724), (4240, 5157), (4584, 4770)]