318928496

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 661291008

約数和(自身を除く): 342362512

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 83, 122, 124, 127, 166, 244, 248, 254, 332, 488, 496, 508, 664, 976, 1016, 1328, 1891, 2032, 2573, 3782, 3937, 5063, 5146, 7564, 7747, 7874, 10126, 10292, 10541, 15128, 15494, 15748, 20252, 20584, 21082, 30256, 30988, 31496, 40504, 41168, 42164, 61976, 62992, 81008, 84328, 123952, 156953, 168656, 240157, 313906, 326771, 480314, 627812, 643001, 653542, 960628, 1255624, 1286002, 1307084, 1921256, 2511248, 2572004, 2614168, 3842512, 5144008, 5228336, 10288016, 19933031, 39866062, 79732124, 159464248, 318928496]

約数ペア:

[(1, 318928496), (2, 159464248), (4, 79732124), (8, 39866062), (16, 19933031), (31, 10288016), (61, 5228336), (62, 5144008), (83, 3842512), (122, 2614168), (124, 2572004), (127, 2511248), (166, 1921256), (244, 1307084), (248, 1286002), (254, 1255624), (332, 960628), (488, 653542), (496, 643001), (508, 627812), (664, 480314), (976, 326771), (1016, 313906), (1328, 240157), (1891, 168656), (2032, 156953), (2573, 123952), (3782, 84328), (3937, 81008), (5063, 62992), (5146, 61976), (7564, 42164), (7747, 41168), (7874, 40504), (10126, 31496), (10292, 30988), (10541, 30256), (15128, 21082), (15494, 20584), (15748, 20252)]