79918720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17839}}^1$

素因数の和:17865

約数の個数: 64

約数和(自身を含む): 218361600

約数和(自身を除く): 138442880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 17839, 35678, 71356, 89195, 124873, 142712, 178390, 249746, 285424, 356780, 499492, 570848, 624365, 713560, 998984, 1141696, 1248730, 1427120, 1997968, 2283392, 2497460, 2854240, 3995936, 4994920, 5708480, 7991872, 9989840, 11416960, 15983744, 19979680, 39959360, 79918720]

約数ペア:

[(1, 79918720), (2, 39959360), (4, 19979680), (5, 15983744), (7, 11416960), (8, 9989840), (10, 7991872), (14, 5708480), (16, 4994920), (20, 3995936), (28, 2854240), (32, 2497460), (35, 2283392), (40, 1997968), (56, 1427120), (64, 1248730), (70, 1141696), (80, 998984), (112, 713560), (128, 624365), (140, 570848), (160, 499492), (224, 356780), (280, 285424), (320, 249746), (448, 178390), (560, 142712), (640, 124873), (896, 89195), (1120, 71356), (2240, 35678), (4480, 17839)]