1991208492

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2801}}^1$

素因数の和:2869

約数の個数: 216

約数和(自身を含む): 6511220352

約数和(自身を除く): 4520011860

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 31, 36, 39, 42, 49, 52, 62, 63, 78, 84, 91, 93, 98, 117, 124, 126, 147, 156, 182, 186, 196, 217, 234, 252, 273, 279, 294, 364, 372, 403, 434, 441, 468, 546, 558, 588, 637, 651, 806, 819, 868, 882, 1092, 1116, 1209, 1274, 1302, 1519, 1612, 1638, 1764, 1911, 1953, 2418, 2548, 2604, 2801, 2821, 3038, 3276, 3627, 3822, 3906, 4557, 4836, 5602, 5642, 5733, 6076, 7254, 7644, 7812, 8403, 8463, 9114, 11204, 11284, 11466, 13671, 14508, 16806, 16926, 18228, 19607, 19747, 22932, 25209, 25389, 27342, 33612, 33852, 36413, 39214, 39494, 50418, 50778, 54684, 58821, 59241, 72826, 78428, 78988, 86831, 100836, 101556, 109239, 117642, 118482, 137249, 145652, 173662, 176463, 177723, 218478, 235284, 236964, 254891, 260493, 274498, 327717, 347324, 352926, 355446, 411747, 436956, 509782, 520986, 548996, 607817, 655434, 705852, 710892, 764673, 781479, 823494, 1019564, 1041972, 1128803, 1215634, 1235241, 1310868, 1529346, 1562958, 1646988, 1784237, 1823451, 2257606, 2294019, 2431268, 2470482, 3058692, 3125916, 3386409, 3568474, 3646902, 4254719, 4515212, 4588038, 4940964, 5352711, 5470353, 6772818, 7136948, 7293804, 7901621, 8509438, 9176076, 10159227, 10705422, 10940706, 12764157, 13545636, 15803242, 16058133, 17018876, 20318454, 21410844, 21881412, 23704863, 25528314, 31606484, 32116266, 38292471, 40636908, 47409726, 51056628, 55311347, 64232532, 71114589, 76584942, 94819452, 110622694, 142229178, 153169884, 165934041, 221245388, 284458356, 331868082, 497802123, 663736164, 995604246, 1991208492]

約数ペア:

[(1, 1991208492), (2, 995604246), (3, 663736164), (4, 497802123), (6, 331868082), (7, 284458356), (9, 221245388), (12, 165934041), (13, 153169884), (14, 142229178), (18, 110622694), (21, 94819452), (26, 76584942), (28, 71114589), (31, 64232532), (36, 55311347), (39, 51056628), (42, 47409726), (49, 40636908), (52, 38292471), (62, 32116266), (63, 31606484), (78, 25528314), (84, 23704863), (91, 21881412), (93, 21410844), (98, 20318454), (117, 17018876), (124, 16058133), (126, 15803242), (147, 13545636), (156, 12764157), (182, 10940706), (186, 10705422), (196, 10159227), (217, 9176076), (234, 8509438), (252, 7901621), (273, 7293804), (279, 7136948), (294, 6772818), (364, 5470353), (372, 5352711), (403, 4940964), (434, 4588038), (441, 4515212), (468, 4254719), (546, 3646902), (558, 3568474), (588, 3386409), (637, 3125916), (651, 3058692), (806, 2470482), (819, 2431268), (868, 2294019), (882, 2257606), (1092, 1823451), (1116, 1784237), (1209, 1646988), (1274, 1562958), (1302, 1529346), (1519, 1310868), (1612, 1235241), (1638, 1215634), (1764, 1128803), (1911, 1041972), (1953, 1019564), (2418, 823494), (2548, 781479), (2604, 764673), (2801, 710892), (2821, 705852), (3038, 655434), (3276, 607817), (3627, 548996), (3822, 520986), (3906, 509782), (4557, 436956), (4836, 411747), (5602, 355446), (5642, 352926), (5733, 347324), (6076, 327717), (7254, 274498), (7644, 260493), (7812, 254891), (8403, 236964), (8463, 235284), (9114, 218478), (11204, 177723), (11284, 176463), (11466, 173662), (13671, 145652), (14508, 137249), (16806, 118482), (16926, 117642), (18228, 109239), (19607, 101556), (19747, 100836), (22932, 86831), (25209, 78988), (25389, 78428), (27342, 72826), (33612, 59241), (33852, 58821), (36413, 54684), (39214, 50778), (39494, 50418)]