656932904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 1451520000

約数和(自身を除く): 794587096

約数列:

[1, 2, 4, 8, 17, 19, 31, 34, 38, 59, 62, 68, 76, 118, 124, 136, 139, 152, 236, 248, 278, 323, 472, 527, 556, 589, 646, 1003, 1054, 1112, 1121, 1178, 1292, 1829, 2006, 2108, 2242, 2356, 2363, 2584, 2641, 3658, 4012, 4216, 4309, 4484, 4712, 4726, 5282, 7316, 8024, 8201, 8618, 8968, 9452, 10013, 10564, 14632, 16402, 17236, 18904, 19057, 20026, 21128, 31093, 32804, 34472, 34751, 38114, 40052, 44897, 62186, 65608, 69502, 73253, 76228, 80104, 81871, 89794, 124372, 139004, 139417, 146506, 152456, 155819, 163742, 179588, 248744, 254231, 278008, 278834, 293012, 311638, 327484, 359176, 508462, 557668, 586024, 590767, 623276, 654968, 1016924, 1115336, 1181534, 1246552, 1391807, 2033848, 2363068, 2648923, 2783614, 4321927, 4726136, 4830389, 5297846, 5567228, 8643854, 9660778, 10595692, 11134456, 17287708, 19321556, 21191384, 34575416, 38643112, 82116613, 164233226, 328466452, 656932904]

約数ペア:

[(1, 656932904), (2, 328466452), (4, 164233226), (8, 82116613), (17, 38643112), (19, 34575416), (31, 21191384), (34, 19321556), (38, 17287708), (59, 11134456), (62, 10595692), (68, 9660778), (76, 8643854), (118, 5567228), (124, 5297846), (136, 4830389), (139, 4726136), (152, 4321927), (236, 2783614), (248, 2648923), (278, 2363068), (323, 2033848), (472, 1391807), (527, 1246552), (556, 1181534), (589, 1115336), (646, 1016924), (1003, 654968), (1054, 623276), (1112, 590767), (1121, 586024), (1178, 557668), (1292, 508462), (1829, 359176), (2006, 327484), (2108, 311638), (2242, 293012), (2356, 278834), (2363, 278008), (2584, 254231), (2641, 248744), (3658, 179588), (4012, 163742), (4216, 155819), (4309, 152456), (4484, 146506), (4712, 139417), (4726, 139004), (5282, 124372), (7316, 89794), (8024, 81871), (8201, 80104), (8618, 76228), (8968, 73253), (9452, 69502), (10013, 65608), (10564, 62186), (14632, 44897), (16402, 40052), (17236, 38114), (18904, 34751), (19057, 34472), (20026, 32804), (21128, 31093)]