81866288

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 160

約数和(自身を含む): 211415040

約数和(自身を除く): 129548752

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 31, 34, 38, 56, 62, 68, 73, 76, 112, 119, 124, 133, 136, 146, 152, 217, 238, 248, 266, 272, 292, 304, 323, 434, 476, 496, 511, 527, 532, 584, 589, 646, 868, 952, 1022, 1054, 1064, 1168, 1178, 1241, 1292, 1387, 1736, 1904, 2044, 2108, 2128, 2261, 2263, 2356, 2482, 2584, 2774, 3472, 3689, 4088, 4123, 4216, 4522, 4526, 4712, 4964, 5168, 5548, 7378, 8176, 8246, 8432, 8687, 9044, 9052, 9424, 9709, 9928, 10013, 11096, 14756, 15841, 16492, 17374, 18088, 18104, 19418, 19856, 20026, 22192, 23579, 29512, 31682, 32984, 34748, 36176, 36208, 38471, 38836, 40052, 42997, 47158, 59024, 63364, 65968, 69496, 70091, 76942, 77672, 80104, 85994, 94316, 126728, 138992, 140182, 153884, 155344, 160208, 165053, 171988, 188632, 253456, 269297, 280364, 300979, 307768, 330106, 343976, 377264, 538594, 560728, 601958, 615536, 660212, 687952, 730949, 1077188, 1121456, 1203916, 1320424, 1461898, 2154376, 2407832, 2640848, 2923796, 4308752, 4815664, 5116643, 5847592, 10233286, 11695184, 20466572, 40933144, 81866288]

約数ペア:

[(1, 81866288), (2, 40933144), (4, 20466572), (7, 11695184), (8, 10233286), (14, 5847592), (16, 5116643), (17, 4815664), (19, 4308752), (28, 2923796), (31, 2640848), (34, 2407832), (38, 2154376), (56, 1461898), (62, 1320424), (68, 1203916), (73, 1121456), (76, 1077188), (112, 730949), (119, 687952), (124, 660212), (133, 615536), (136, 601958), (146, 560728), (152, 538594), (217, 377264), (238, 343976), (248, 330106), (266, 307768), (272, 300979), (292, 280364), (304, 269297), (323, 253456), (434, 188632), (476, 171988), (496, 165053), (511, 160208), (527, 155344), (532, 153884), (584, 140182), (589, 138992), (646, 126728), (868, 94316), (952, 85994), (1022, 80104), (1054, 77672), (1064, 76942), (1168, 70091), (1178, 69496), (1241, 65968), (1292, 63364), (1387, 59024), (1736, 47158), (1904, 42997), (2044, 40052), (2108, 38836), (2128, 38471), (2261, 36208), (2263, 36176), (2356, 34748), (2482, 32984), (2584, 31682), (2774, 29512), (3472, 23579), (3689, 22192), (4088, 20026), (4123, 19856), (4216, 19418), (4522, 18104), (4526, 18088), (4712, 17374), (4964, 16492), (5168, 15841), (5548, 14756), (7378, 11096), (8176, 10013), (8246, 9928), (8432, 9709), (8687, 9424), (9044, 9052)]