21673680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:146

約数の個数: 240

約数和(自身を含む): 83119680

約数和(自身を除く): 61446000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 49, 56, 57, 60, 70, 76, 80, 84, 95, 97, 98, 105, 112, 114, 120, 133, 140, 147, 152, 168, 190, 194, 196, 210, 228, 240, 245, 266, 280, 285, 291, 294, 304, 336, 380, 388, 392, 399, 420, 456, 485, 490, 532, 560, 570, 582, 588, 665, 679, 735, 760, 776, 784, 798, 840, 912, 931, 970, 980, 1064, 1140, 1164, 1176, 1330, 1358, 1455, 1470, 1520, 1552, 1596, 1680, 1843, 1862, 1940, 1960, 1995, 2037, 2128, 2280, 2328, 2352, 2660, 2716, 2793, 2910, 2940, 3192, 3395, 3686, 3724, 3880, 3920, 3990, 4074, 4560, 4655, 4656, 4753, 5320, 5432, 5529, 5586, 5820, 5880, 6384, 6790, 7372, 7448, 7760, 7980, 8148, 9215, 9310, 9506, 10185, 10640, 10864, 11058, 11172, 11640, 11760, 12901, 13580, 13965, 14259, 14744, 14896, 15960, 16296, 18430, 18620, 19012, 20370, 22116, 22344, 23280, 23765, 25802, 27160, 27645, 27930, 28518, 29488, 31920, 32592, 36860, 37240, 38024, 38703, 40740, 44232, 44688, 47530, 51604, 54320, 55290, 55860, 57036, 64505, 71295, 73720, 74480, 76048, 77406, 81480, 88464, 90307, 95060, 103208, 110580, 111720, 114072, 129010, 142590, 147440, 154812, 162960, 180614, 190120, 193515, 206416, 221160, 223440, 228144, 258020, 270921, 285180, 309624, 361228, 380240, 387030, 442320, 451535, 516040, 541842, 570360, 619248, 722456, 774060, 903070, 1032080, 1083684, 1140720, 1354605, 1444912, 1548120, 1806140, 2167368, 2709210, 3096240, 3612280, 4334736, 5418420, 7224560, 10836840, 21673680]

約数ペア:

[(1, 21673680), (2, 10836840), (3, 7224560), (4, 5418420), (5, 4334736), (6, 3612280), (7, 3096240), (8, 2709210), (10, 2167368), (12, 1806140), (14, 1548120), (15, 1444912), (16, 1354605), (19, 1140720), (20, 1083684), (21, 1032080), (24, 903070), (28, 774060), (30, 722456), (35, 619248), (38, 570360), (40, 541842), (42, 516040), (48, 451535), (49, 442320), (56, 387030), (57, 380240), (60, 361228), (70, 309624), (76, 285180), (80, 270921), (84, 258020), (95, 228144), (97, 223440), (98, 221160), (105, 206416), (112, 193515), (114, 190120), (120, 180614), (133, 162960), (140, 154812), (147, 147440), (152, 142590), (168, 129010), (190, 114072), (194, 111720), (196, 110580), (210, 103208), (228, 95060), (240, 90307), (245, 88464), (266, 81480), (280, 77406), (285, 76048), (291, 74480), (294, 73720), (304, 71295), (336, 64505), (380, 57036), (388, 55860), (392, 55290), (399, 54320), (420, 51604), (456, 47530), (485, 44688), (490, 44232), (532, 40740), (560, 38703), (570, 38024), (582, 37240), (588, 36860), (665, 32592), (679, 31920), (735, 29488), (760, 28518), (776, 27930), (784, 27645), (798, 27160), (840, 25802), (912, 23765), (931, 23280), (970, 22344), (980, 22116), (1064, 20370), (1140, 19012), (1164, 18620), (1176, 18430), (1330, 16296), (1358, 15960), (1455, 14896), (1470, 14744), (1520, 14259), (1552, 13965), (1596, 13580), (1680, 12901), (1843, 11760), (1862, 11640), (1940, 11172), (1960, 11058), (1995, 10864), (2037, 10640), (2128, 10185), (2280, 9506), (2328, 9310), (2352, 9215), (2660, 8148), (2716, 7980), (2793, 7760), (2910, 7448), (2940, 7372), (3192, 6790), (3395, 6384), (3686, 5880), (3724, 5820), (3880, 5586), (3920, 5529), (3990, 5432), (4074, 5320), (4560, 4753), (4655, 4656)]