20745221328

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8719}}^1$

素因数の和:8818

約数の個数: 240

約数和(自身を含む): 66122434560

約数和(自身を除く): 45377213232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 36, 39, 41, 48, 52, 62, 72, 78, 82, 93, 104, 117, 123, 124, 144, 156, 164, 186, 208, 234, 246, 248, 279, 312, 328, 369, 372, 403, 468, 492, 496, 533, 558, 624, 656, 738, 744, 806, 936, 984, 1066, 1116, 1209, 1271, 1476, 1488, 1599, 1612, 1872, 1968, 2132, 2232, 2418, 2542, 2952, 3198, 3224, 3627, 3813, 4264, 4464, 4797, 4836, 5084, 5904, 6396, 6448, 7254, 7626, 8528, 8719, 9594, 9672, 10168, 11439, 12792, 14508, 15252, 16523, 17438, 19188, 19344, 20336, 22878, 25584, 26157, 29016, 30504, 33046, 34876, 38376, 45756, 49569, 52314, 58032, 61008, 66092, 69752, 76752, 78471, 91512, 99138, 104628, 113347, 132184, 139504, 148707, 156942, 183024, 198276, 209256, 226694, 264368, 270289, 297414, 313884, 340041, 357479, 396552, 418512, 453388, 540578, 594828, 627768, 680082, 714958, 793104, 810867, 906776, 1020123, 1072437, 1081156, 1189656, 1255536, 1360164, 1429916, 1621734, 1813552, 2040246, 2144874, 2162312, 2379312, 2432601, 2720328, 2859832, 3217311, 3243468, 3513757, 4080492, 4289748, 4324624, 4647227, 4865202, 5440656, 5719664, 6434622, 6486936, 7027514, 8160984, 8579496, 9294454, 9730404, 10541271, 11081849, 12869244, 12973872, 13941681, 14055028, 16321968, 17158992, 18588908, 19460808, 21082542, 22163698, 25738488, 27883362, 28110056, 31623813, 33245547, 37177816, 38921616, 41825043, 42165084, 44327396, 51476976, 55766724, 56220112, 63247626, 66491094, 74355632, 83650086, 84330168, 88654792, 99736641, 111533448, 126495252, 132982188, 144064037, 167300172, 168660336, 177309584, 199473282, 223066896, 252990504, 265964376, 288128074, 334600344, 398946564, 432192111, 505981008, 531928752, 576256148, 669200688, 797893128, 864384222, 1152512296, 1296576333, 1595786256, 1728768444, 2305024592, 2593152666, 3457536888, 5186305332, 6915073776, 10372610664, 20745221328]

約数ペア:

[(1, 20745221328), (2, 10372610664), (3, 6915073776), (4, 5186305332), (6, 3457536888), (8, 2593152666), (9, 2305024592), (12, 1728768444), (13, 1595786256), (16, 1296576333), (18, 1152512296), (24, 864384222), (26, 797893128), (31, 669200688), (36, 576256148), (39, 531928752), (41, 505981008), (48, 432192111), (52, 398946564), (62, 334600344), (72, 288128074), (78, 265964376), (82, 252990504), (93, 223066896), (104, 199473282), (117, 177309584), (123, 168660336), (124, 167300172), (144, 144064037), (156, 132982188), (164, 126495252), (186, 111533448), (208, 99736641), (234, 88654792), (246, 84330168), (248, 83650086), (279, 74355632), (312, 66491094), (328, 63247626), (369, 56220112), (372, 55766724), (403, 51476976), (468, 44327396), (492, 42165084), (496, 41825043), (533, 38921616), (558, 37177816), (624, 33245547), (656, 31623813), (738, 28110056), (744, 27883362), (806, 25738488), (936, 22163698), (984, 21082542), (1066, 19460808), (1116, 18588908), (1209, 17158992), (1271, 16321968), (1476, 14055028), (1488, 13941681), (1599, 12973872), (1612, 12869244), (1872, 11081849), (1968, 10541271), (2132, 9730404), (2232, 9294454), (2418, 8579496), (2542, 8160984), (2952, 7027514), (3198, 6486936), (3224, 6434622), (3627, 5719664), (3813, 5440656), (4264, 4865202), (4464, 4647227), (4797, 4324624), (4836, 4289748), (5084, 4080492), (5904, 3513757), (6396, 3243468), (6448, 3217311), (7254, 2859832), (7626, 2720328), (8528, 2432601), (8719, 2379312), (9594, 2162312), (9672, 2144874), (10168, 2040246), (11439, 1813552), (12792, 1621734), (14508, 1429916), (15252, 1360164), (16523, 1255536), (17438, 1189656), (19188, 1081156), (19344, 1072437), (20336, 1020123), (22878, 906776), (25584, 810867), (26157, 793104), (29016, 714958), (30504, 680082), (33046, 627768), (34876, 594828), (38376, 540578), (45756, 453388), (49569, 418512), (52314, 396552), (58032, 357479), (61008, 340041), (66092, 313884), (69752, 297414), (76752, 270289), (78471, 264368), (91512, 226694), (99138, 209256), (104628, 198276), (113347, 183024), (132184, 156942), (139504, 148707)]