21160920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:106

約数の個数: 256

約数和(自身を含む): 78382080

約数和(自身を除く): 57221160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 23, 24, 30, 33, 34, 40, 41, 44, 46, 51, 55, 60, 66, 68, 69, 82, 85, 88, 92, 102, 110, 115, 120, 123, 132, 136, 138, 164, 165, 170, 184, 187, 204, 205, 220, 230, 246, 253, 255, 264, 276, 328, 330, 340, 345, 374, 391, 408, 410, 440, 451, 460, 492, 506, 510, 552, 561, 615, 660, 680, 690, 697, 748, 759, 782, 820, 902, 920, 935, 943, 984, 1012, 1020, 1122, 1173, 1230, 1265, 1320, 1353, 1380, 1394, 1496, 1518, 1564, 1640, 1804, 1870, 1886, 1955, 2024, 2040, 2091, 2244, 2255, 2346, 2460, 2530, 2706, 2760, 2788, 2805, 2829, 3036, 3128, 3485, 3608, 3740, 3772, 3795, 3910, 4182, 4301, 4488, 4510, 4692, 4715, 4920, 5060, 5412, 5576, 5610, 5658, 5865, 6072, 6765, 6970, 7480, 7544, 7590, 7667, 7820, 8364, 8602, 9020, 9384, 9430, 10120, 10373, 10455, 10824, 11220, 11316, 11730, 12903, 13530, 13940, 14145, 15180, 15334, 15640, 16031, 16728, 17204, 18040, 18860, 20746, 20910, 21505, 22440, 22632, 23001, 23460, 25806, 27060, 27880, 28290, 30360, 30668, 31119, 32062, 34408, 37720, 38335, 41492, 41820, 43010, 46002, 46920, 48093, 51612, 51865, 54120, 56580, 61336, 62238, 64124, 64515, 76670, 80155, 82984, 83640, 86020, 92004, 96186, 103224, 103730, 113160, 115005, 124476, 128248, 129030, 153340, 155595, 160310, 172040, 176341, 184008, 192372, 207460, 230010, 240465, 248952, 258060, 306680, 311190, 320620, 352682, 384744, 414920, 460020, 480930, 516120, 529023, 622380, 641240, 705364, 881705, 920040, 961860, 1058046, 1244760, 1410728, 1763410, 1923720, 2116092, 2645115, 3526820, 4232184, 5290230, 7053640, 10580460, 21160920]

約数ペア:

[(1, 21160920), (2, 10580460), (3, 7053640), (4, 5290230), (5, 4232184), (6, 3526820), (8, 2645115), (10, 2116092), (11, 1923720), (12, 1763410), (15, 1410728), (17, 1244760), (20, 1058046), (22, 961860), (23, 920040), (24, 881705), (30, 705364), (33, 641240), (34, 622380), (40, 529023), (41, 516120), (44, 480930), (46, 460020), (51, 414920), (55, 384744), (60, 352682), (66, 320620), (68, 311190), (69, 306680), (82, 258060), (85, 248952), (88, 240465), (92, 230010), (102, 207460), (110, 192372), (115, 184008), (120, 176341), (123, 172040), (132, 160310), (136, 155595), (138, 153340), (164, 129030), (165, 128248), (170, 124476), (184, 115005), (187, 113160), (204, 103730), (205, 103224), (220, 96186), (230, 92004), (246, 86020), (253, 83640), (255, 82984), (264, 80155), (276, 76670), (328, 64515), (330, 64124), (340, 62238), (345, 61336), (374, 56580), (391, 54120), (408, 51865), (410, 51612), (440, 48093), (451, 46920), (460, 46002), (492, 43010), (506, 41820), (510, 41492), (552, 38335), (561, 37720), (615, 34408), (660, 32062), (680, 31119), (690, 30668), (697, 30360), (748, 28290), (759, 27880), (782, 27060), (820, 25806), (902, 23460), (920, 23001), (935, 22632), (943, 22440), (984, 21505), (1012, 20910), (1020, 20746), (1122, 18860), (1173, 18040), (1230, 17204), (1265, 16728), (1320, 16031), (1353, 15640), (1380, 15334), (1394, 15180), (1496, 14145), (1518, 13940), (1564, 13530), (1640, 12903), (1804, 11730), (1870, 11316), (1886, 11220), (1955, 10824), (2024, 10455), (2040, 10373), (2091, 10120), (2244, 9430), (2255, 9384), (2346, 9020), (2460, 8602), (2530, 8364), (2706, 7820), (2760, 7667), (2788, 7590), (2805, 7544), (2829, 7480), (3036, 6970), (3128, 6765), (3485, 6072), (3608, 5865), (3740, 5658), (3772, 5610), (3795, 5576), (3910, 5412), (4182, 5060), (4301, 4920), (4488, 4715), (4510, 4692)]