78589600

素因数分解:

$2^5\times 5^2\times {\mathrm{193}}^1\times {\mathrm{509}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 193229820

約数和(自身を除く): 114640220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 193, 200, 386, 400, 509, 772, 800, 965, 1018, 1544, 1930, 2036, 2545, 3088, 3860, 4072, 4825, 5090, 6176, 7720, 8144, 9650, 10180, 12725, 15440, 16288, 19300, 20360, 25450, 30880, 38600, 40720, 50900, 77200, 81440, 98237, 101800, 154400, 196474, 203600, 392948, 407200, 491185, 785896, 982370, 1571792, 1964740, 2455925, 3143584, 3929480, 4911850, 7858960, 9823700, 15717920, 19647400, 39294800, 78589600]

約数ペア:

[(1, 78589600), (2, 39294800), (4, 19647400), (5, 15717920), (8, 9823700), (10, 7858960), (16, 4911850), (20, 3929480), (25, 3143584), (32, 2455925), (40, 1964740), (50, 1571792), (80, 982370), (100, 785896), (160, 491185), (193, 407200), (200, 392948), (386, 203600), (400, 196474), (509, 154400), (772, 101800), (800, 98237), (965, 81440), (1018, 77200), (1544, 50900), (1930, 40720), (2036, 38600), (2545, 30880), (3088, 25450), (3860, 20360), (4072, 19300), (4825, 16288), (5090, 15440), (6176, 12725), (7720, 10180), (8144, 9650)]