656247680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 192

約数和(自身を含む): 1786685040

約数和(自身を除く): 1130437360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 97, 110, 124, 128, 155, 160, 176, 194, 220, 248, 310, 320, 341, 352, 388, 440, 485, 496, 620, 640, 682, 704, 776, 880, 961, 970, 992, 1067, 1240, 1364, 1408, 1552, 1705, 1760, 1922, 1940, 1984, 2134, 2480, 2728, 3007, 3104, 3410, 3520, 3844, 3880, 3968, 4268, 4805, 4960, 5335, 5456, 6014, 6208, 6820, 7040, 7688, 7760, 8536, 9610, 9920, 10571, 10670, 10912, 12028, 12416, 13640, 15035, 15376, 15520, 17072, 19220, 19840, 21142, 21340, 21824, 24056, 27280, 30070, 30752, 31040, 33077, 34144, 38440, 42284, 42680, 43648, 48112, 52855, 54560, 60140, 61504, 62080, 66154, 68288, 76880, 84568, 85360, 93217, 96224, 105710, 109120, 120280, 123008, 132308, 136576, 153760, 165385, 169136, 170720, 186434, 192448, 211420, 218240, 240560, 264616, 307520, 330770, 338272, 341440, 372868, 384896, 422840, 466085, 481120, 529232, 615040, 661540, 676544, 682880, 745736, 845680, 932170, 962240, 1025387, 1058464, 1323080, 1353088, 1491472, 1691360, 1864340, 1924480, 2050774, 2116928, 2646160, 2982944, 3382720, 3728680, 4101548, 4233856, 5126935, 5292320, 5965888, 6765440, 7457360, 8203096, 10253870, 10584640, 11931776, 14914720, 16406192, 20507740, 21169280, 29829440, 32812384, 41015480, 59658880, 65624768, 82030960, 131249536, 164061920, 328123840, 656247680]

約数ペア:

[(1, 656247680), (2, 328123840), (4, 164061920), (5, 131249536), (8, 82030960), (10, 65624768), (11, 59658880), (16, 41015480), (20, 32812384), (22, 29829440), (31, 21169280), (32, 20507740), (40, 16406192), (44, 14914720), (55, 11931776), (62, 10584640), (64, 10253870), (80, 8203096), (88, 7457360), (97, 6765440), (110, 5965888), (124, 5292320), (128, 5126935), (155, 4233856), (160, 4101548), (176, 3728680), (194, 3382720), (220, 2982944), (248, 2646160), (310, 2116928), (320, 2050774), (341, 1924480), (352, 1864340), (388, 1691360), (440, 1491472), (485, 1353088), (496, 1323080), (620, 1058464), (640, 1025387), (682, 962240), (704, 932170), (776, 845680), (880, 745736), (961, 682880), (970, 676544), (992, 661540), (1067, 615040), (1240, 529232), (1364, 481120), (1408, 466085), (1552, 422840), (1705, 384896), (1760, 372868), (1922, 341440), (1940, 338272), (1984, 330770), (2134, 307520), (2480, 264616), (2728, 240560), (3007, 218240), (3104, 211420), (3410, 192448), (3520, 186434), (3844, 170720), (3880, 169136), (3968, 165385), (4268, 153760), (4805, 136576), (4960, 132308), (5335, 123008), (5456, 120280), (6014, 109120), (6208, 105710), (6820, 96224), (7040, 93217), (7688, 85360), (7760, 84568), (8536, 76880), (9610, 68288), (9920, 66154), (10571, 62080), (10670, 61504), (10912, 60140), (12028, 54560), (12416, 52855), (13640, 48112), (15035, 43648), (15376, 42680), (15520, 42284), (17072, 38440), (19220, 34144), (19840, 33077), (21142, 31040), (21340, 30752), (21824, 30070), (24056, 27280)]