78998720

素因数分解:

$2^6\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1427}}^1$

素因数の和:1617

約数の個数: 56

約数和(自身を含む): 189335664

約数和(自身を除く): 110336944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 173, 320, 346, 692, 865, 1384, 1427, 1730, 2768, 2854, 3460, 5536, 5708, 6920, 7135, 11072, 11416, 13840, 14270, 22832, 27680, 28540, 45664, 55360, 57080, 91328, 114160, 228320, 246871, 456640, 493742, 987484, 1234355, 1974968, 2468710, 3949936, 4937420, 7899872, 9874840, 15799744, 19749680, 39499360, 78998720]

約数ペア:

[(1, 78998720), (2, 39499360), (4, 19749680), (5, 15799744), (8, 9874840), (10, 7899872), (16, 4937420), (20, 3949936), (32, 2468710), (40, 1974968), (64, 1234355), (80, 987484), (160, 493742), (173, 456640), (320, 246871), (346, 228320), (692, 114160), (865, 91328), (1384, 57080), (1427, 55360), (1730, 45664), (2768, 28540), (2854, 27680), (3460, 22832), (5536, 14270), (5708, 13840), (6920, 11416), (7135, 11072)]