686651488

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2143}}^1$

素因数の和:2220

約数の個数: 96

約数和(自身を含む): 1556029440

約数和(自身を除く): 869377952

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 32, 34, 38, 62, 68, 76, 124, 136, 152, 248, 272, 304, 323, 496, 527, 544, 589, 608, 646, 992, 1054, 1178, 1292, 2108, 2143, 2356, 2584, 4216, 4286, 4712, 5168, 8432, 8572, 9424, 10013, 10336, 16864, 17144, 18848, 20026, 34288, 36431, 40052, 40717, 66433, 68576, 72862, 80104, 81434, 132866, 145724, 160208, 162868, 265732, 291448, 320416, 325736, 531464, 582896, 651472, 692189, 1062928, 1129361, 1165792, 1262227, 1302944, 1384378, 2125856, 2258722, 2524454, 2768756, 4517444, 5048908, 5537512, 9034888, 10097816, 11075024, 18069776, 20195632, 21457859, 22150048, 36139552, 40391264, 42915718, 85831436, 171662872, 343325744, 686651488]

約数ペア:

[(1, 686651488), (2, 343325744), (4, 171662872), (8, 85831436), (16, 42915718), (17, 40391264), (19, 36139552), (31, 22150048), (32, 21457859), (34, 20195632), (38, 18069776), (62, 11075024), (68, 10097816), (76, 9034888), (124, 5537512), (136, 5048908), (152, 4517444), (248, 2768756), (272, 2524454), (304, 2258722), (323, 2125856), (496, 1384378), (527, 1302944), (544, 1262227), (589, 1165792), (608, 1129361), (646, 1062928), (992, 692189), (1054, 651472), (1178, 582896), (1292, 531464), (2108, 325736), (2143, 320416), (2356, 291448), (2584, 265732), (4216, 162868), (4286, 160208), (4712, 145724), (5168, 132866), (8432, 81434), (8572, 80104), (9424, 72862), (10013, 68576), (10336, 66433), (16864, 40717), (17144, 40052), (18848, 36431), (20026, 34288)]