78720656

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 120

約数和(自身を含む): 189987840

約数和(自身を除く): 111267184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 41, 49, 56, 62, 79, 82, 98, 112, 124, 158, 164, 196, 217, 248, 287, 316, 328, 392, 434, 496, 553, 574, 632, 656, 784, 868, 1106, 1148, 1264, 1271, 1519, 1736, 2009, 2212, 2296, 2449, 2542, 3038, 3239, 3472, 3871, 4018, 4424, 4592, 4898, 5084, 6076, 6478, 7742, 8036, 8848, 8897, 9796, 10168, 12152, 12956, 15484, 16072, 17143, 17794, 19592, 20336, 22673, 24304, 25912, 30968, 32144, 34286, 35588, 39184, 45346, 51824, 61936, 62279, 68572, 71176, 90692, 100409, 120001, 124558, 137144, 142352, 158711, 181384, 200818, 240002, 249116, 274288, 317422, 362768, 401636, 480004, 498232, 634844, 702863, 803272, 960008, 996464, 1269688, 1405726, 1606544, 1920016, 2539376, 2811452, 4920041, 5622904, 9840082, 11245808, 19680164, 39360328, 78720656]

約数ペア:

[(1, 78720656), (2, 39360328), (4, 19680164), (7, 11245808), (8, 9840082), (14, 5622904), (16, 4920041), (28, 2811452), (31, 2539376), (41, 1920016), (49, 1606544), (56, 1405726), (62, 1269688), (79, 996464), (82, 960008), (98, 803272), (112, 702863), (124, 634844), (158, 498232), (164, 480004), (196, 401636), (217, 362768), (248, 317422), (287, 274288), (316, 249116), (328, 240002), (392, 200818), (434, 181384), (496, 158711), (553, 142352), (574, 137144), (632, 124558), (656, 120001), (784, 100409), (868, 90692), (1106, 71176), (1148, 68572), (1264, 62279), (1271, 61936), (1519, 51824), (1736, 45346), (2009, 39184), (2212, 35588), (2296, 34286), (2449, 32144), (2542, 30968), (3038, 25912), (3239, 24304), (3472, 22673), (3871, 20336), (4018, 19592), (4424, 17794), (4592, 17143), (4898, 16072), (5084, 15484), (6076, 12956), (6478, 12152), (7742, 10168), (8036, 9796), (8848, 8897)]