1278921720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{109873}}^1$

素因数の和:109984

約数の個数: 64

約数和(自身を含む): 3876354720

約数和(自身を除く): 2597433000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1940, 2328, 2910, 3880, 5820, 11640, 109873, 219746, 329619, 439492, 549365, 659238, 878984, 1098730, 1318476, 1648095, 2197460, 2636952, 3296190, 4394920, 6592380, 10657681, 13184760, 21315362, 31973043, 42630724, 53288405, 63946086, 85261448, 106576810, 127892172, 159865215, 213153620, 255784344, 319730430, 426307240, 639460860, 1278921720]

約数ペア:

[(1, 1278921720), (2, 639460860), (3, 426307240), (4, 319730430), (5, 255784344), (6, 213153620), (8, 159865215), (10, 127892172), (12, 106576810), (15, 85261448), (20, 63946086), (24, 53288405), (30, 42630724), (40, 31973043), (60, 21315362), (97, 13184760), (120, 10657681), (194, 6592380), (291, 4394920), (388, 3296190), (485, 2636952), (582, 2197460), (776, 1648095), (970, 1318476), (1164, 1098730), (1455, 878984), (1940, 659238), (2328, 549365), (2910, 439492), (3880, 329619), (5820, 219746), (11640, 109873)]