28671720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:168

約数の個数: 256

約数和(自身を含む): 111974400

約数和(自身を除く): 83302680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 29, 30, 33, 35, 40, 42, 44, 55, 56, 58, 60, 66, 70, 77, 84, 87, 88, 105, 107, 110, 116, 120, 132, 140, 145, 154, 165, 168, 174, 203, 210, 214, 220, 231, 232, 264, 280, 290, 308, 319, 321, 330, 348, 385, 406, 420, 428, 435, 440, 462, 535, 580, 609, 616, 638, 642, 660, 696, 749, 770, 812, 840, 856, 870, 924, 957, 1015, 1070, 1155, 1160, 1177, 1218, 1276, 1284, 1320, 1498, 1540, 1595, 1605, 1624, 1740, 1848, 1914, 2030, 2140, 2233, 2247, 2310, 2354, 2436, 2552, 2568, 2996, 3045, 3080, 3103, 3190, 3210, 3480, 3531, 3745, 3828, 4060, 4280, 4466, 4494, 4620, 4708, 4785, 4872, 5885, 5992, 6090, 6206, 6380, 6420, 6699, 7062, 7490, 7656, 8120, 8239, 8932, 8988, 9240, 9309, 9416, 9570, 11165, 11235, 11770, 12180, 12412, 12760, 12840, 13398, 14124, 14980, 15515, 16478, 17655, 17864, 17976, 18618, 19140, 21721, 22330, 22470, 23540, 24360, 24717, 24824, 26796, 28248, 29960, 31030, 32956, 33495, 34133, 35310, 37236, 38280, 41195, 43442, 44660, 44940, 46545, 47080, 49434, 53592, 62060, 65163, 65912, 66990, 68266, 70620, 74472, 82390, 86884, 89320, 89880, 93090, 98868, 102399, 108605, 123585, 124120, 130326, 133980, 136532, 141240, 164780, 170665, 173768, 186180, 197736, 204798, 217210, 238931, 247170, 260652, 267960, 273064, 325815, 329560, 341330, 372360, 409596, 434420, 477862, 494340, 511995, 521304, 651630, 682660, 716793, 819192, 868840, 955724, 988680, 1023990, 1194655, 1303260, 1365320, 1433586, 1911448, 2047980, 2389310, 2606520, 2867172, 3583965, 4095960, 4778620, 5734344, 7167930, 9557240, 14335860, 28671720]

約数ペア:

[(1, 28671720), (2, 14335860), (3, 9557240), (4, 7167930), (5, 5734344), (6, 4778620), (7, 4095960), (8, 3583965), (10, 2867172), (11, 2606520), (12, 2389310), (14, 2047980), (15, 1911448), (20, 1433586), (21, 1365320), (22, 1303260), (24, 1194655), (28, 1023990), (29, 988680), (30, 955724), (33, 868840), (35, 819192), (40, 716793), (42, 682660), (44, 651630), (55, 521304), (56, 511995), (58, 494340), (60, 477862), (66, 434420), (70, 409596), (77, 372360), (84, 341330), (87, 329560), (88, 325815), (105, 273064), (107, 267960), (110, 260652), (116, 247170), (120, 238931), (132, 217210), (140, 204798), (145, 197736), (154, 186180), (165, 173768), (168, 170665), (174, 164780), (203, 141240), (210, 136532), (214, 133980), (220, 130326), (231, 124120), (232, 123585), (264, 108605), (280, 102399), (290, 98868), (308, 93090), (319, 89880), (321, 89320), (330, 86884), (348, 82390), (385, 74472), (406, 70620), (420, 68266), (428, 66990), (435, 65912), (440, 65163), (462, 62060), (535, 53592), (580, 49434), (609, 47080), (616, 46545), (638, 44940), (642, 44660), (660, 43442), (696, 41195), (749, 38280), (770, 37236), (812, 35310), (840, 34133), (856, 33495), (870, 32956), (924, 31030), (957, 29960), (1015, 28248), (1070, 26796), (1155, 24824), (1160, 24717), (1177, 24360), (1218, 23540), (1276, 22470), (1284, 22330), (1320, 21721), (1498, 19140), (1540, 18618), (1595, 17976), (1605, 17864), (1624, 17655), (1740, 16478), (1848, 15515), (1914, 14980), (2030, 14124), (2140, 13398), (2233, 12840), (2247, 12760), (2310, 12412), (2354, 12180), (2436, 11770), (2552, 11235), (2568, 11165), (2996, 9570), (3045, 9416), (3080, 9309), (3103, 9240), (3190, 8988), (3210, 8932), (3480, 8239), (3531, 8120), (3745, 7656), (3828, 7490), (4060, 7062), (4280, 6699), (4466, 6420), (4494, 6380), (4620, 6206), (4708, 6090), (4785, 5992), (4872, 5885)]