78833920

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^2\times {\mathrm{509}}^1$

素因数の和:552

約数の個数: 108

約数和(自身を含む): 207966780

約数和(自身を除く): 129132860

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 256, 320, 352, 440, 484, 509, 605, 640, 704, 880, 968, 1018, 1210, 1280, 1408, 1760, 1936, 2036, 2420, 2545, 2816, 3520, 3872, 4072, 4840, 5090, 5599, 7040, 7744, 8144, 9680, 10180, 11198, 14080, 15488, 16288, 19360, 20360, 22396, 27995, 30976, 32576, 38720, 40720, 44792, 55990, 61589, 65152, 77440, 81440, 89584, 111980, 123178, 130304, 154880, 162880, 179168, 223960, 246356, 307945, 325760, 358336, 447920, 492712, 615890, 651520, 716672, 895840, 985424, 1231780, 1433344, 1791680, 1970848, 2463560, 3583360, 3941696, 4927120, 7166720, 7883392, 9854240, 15766784, 19708480, 39416960, 78833920]

約数ペア:

[(1, 78833920), (2, 39416960), (4, 19708480), (5, 15766784), (8, 9854240), (10, 7883392), (11, 7166720), (16, 4927120), (20, 3941696), (22, 3583360), (32, 2463560), (40, 1970848), (44, 1791680), (55, 1433344), (64, 1231780), (80, 985424), (88, 895840), (110, 716672), (121, 651520), (128, 615890), (160, 492712), (176, 447920), (220, 358336), (242, 325760), (256, 307945), (320, 246356), (352, 223960), (440, 179168), (484, 162880), (509, 154880), (605, 130304), (640, 123178), (704, 111980), (880, 89584), (968, 81440), (1018, 77440), (1210, 65152), (1280, 61589), (1408, 55990), (1760, 44792), (1936, 40720), (2036, 38720), (2420, 32576), (2545, 30976), (2816, 27995), (3520, 22396), (3872, 20360), (4072, 19360), (4840, 16288), (5090, 15488), (5599, 14080), (7040, 11198), (7744, 10180), (8144, 9680)]