21640080

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1171}}^1$

素因数の和:1205

約数の個数: 160

約数和(自身を含む): 83708928

約数和(自身を除く): 62068848

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1171, 1232, 1320, 1540, 1680, 1848, 2310, 2342, 2640, 3080, 3513, 3696, 4620, 4684, 5855, 6160, 7026, 8197, 9240, 9368, 11710, 12881, 14052, 16394, 17565, 18480, 18736, 23420, 24591, 25762, 28104, 32788, 35130, 38643, 40985, 46840, 49182, 51524, 56208, 64405, 65576, 70260, 77286, 81970, 90167, 93680, 98364, 103048, 122955, 128810, 131152, 140520, 154572, 163940, 180334, 193215, 196728, 206096, 245910, 257620, 270501, 281040, 309144, 327880, 360668, 386430, 393456, 450835, 491820, 515240, 541002, 618288, 655760, 721336, 772860, 901670, 983640, 1030480, 1082004, 1352505, 1442672, 1545720, 1803340, 1967280, 2164008, 2705010, 3091440, 3606680, 4328016, 5410020, 7213360, 10820040, 21640080]

約数ペア:

[(1, 21640080), (2, 10820040), (3, 7213360), (4, 5410020), (5, 4328016), (6, 3606680), (7, 3091440), (8, 2705010), (10, 2164008), (11, 1967280), (12, 1803340), (14, 1545720), (15, 1442672), (16, 1352505), (20, 1082004), (21, 1030480), (22, 983640), (24, 901670), (28, 772860), (30, 721336), (33, 655760), (35, 618288), (40, 541002), (42, 515240), (44, 491820), (48, 450835), (55, 393456), (56, 386430), (60, 360668), (66, 327880), (70, 309144), (77, 281040), (80, 270501), (84, 257620), (88, 245910), (105, 206096), (110, 196728), (112, 193215), (120, 180334), (132, 163940), (140, 154572), (154, 140520), (165, 131152), (168, 128810), (176, 122955), (210, 103048), (220, 98364), (231, 93680), (240, 90167), (264, 81970), (280, 77286), (308, 70260), (330, 65576), (336, 64405), (385, 56208), (420, 51524), (440, 49182), (462, 46840), (528, 40985), (560, 38643), (616, 35130), (660, 32788), (770, 28104), (840, 25762), (880, 24591), (924, 23420), (1155, 18736), (1171, 18480), (1232, 17565), (1320, 16394), (1540, 14052), (1680, 12881), (1848, 11710), (2310, 9368), (2342, 9240), (2640, 8197), (3080, 7026), (3513, 6160), (3696, 5855), (4620, 4684)]