78178400

素因数分解:

$2^5\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1237}}^1$

素因数の和:1336

約数の個数: 72

約数和(自身を含む): 193425120

約数和(自身を除く): 115246720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 79, 80, 100, 158, 160, 200, 316, 395, 400, 632, 790, 800, 1237, 1264, 1580, 1975, 2474, 2528, 3160, 3950, 4948, 6185, 6320, 7900, 9896, 12370, 12640, 15800, 19792, 24740, 30925, 31600, 39584, 49480, 61850, 63200, 97723, 98960, 123700, 195446, 197920, 247400, 390892, 488615, 494800, 781784, 977230, 989600, 1563568, 1954460, 2443075, 3127136, 3908920, 4886150, 7817840, 9772300, 15635680, 19544600, 39089200, 78178400]

約数ペア:

[(1, 78178400), (2, 39089200), (4, 19544600), (5, 15635680), (8, 9772300), (10, 7817840), (16, 4886150), (20, 3908920), (25, 3127136), (32, 2443075), (40, 1954460), (50, 1563568), (79, 989600), (80, 977230), (100, 781784), (158, 494800), (160, 488615), (200, 390892), (316, 247400), (395, 197920), (400, 195446), (632, 123700), (790, 98960), (800, 97723), (1237, 63200), (1264, 61850), (1580, 49480), (1975, 39584), (2474, 31600), (2528, 30925), (3160, 24740), (3950, 19792), (4948, 15800), (6185, 12640), (6320, 12370), (7900, 9896)]