91201280

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1657}}^1$

素因数の和:1721

約数の個数: 72

約数和(自身を含む): 223670832

約数和(自身を除く): 132469552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1280, 1376, 1657, 1720, 2752, 3314, 3440, 5504, 6628, 6880, 8285, 11008, 13256, 13760, 16570, 26512, 27520, 33140, 53024, 55040, 66280, 71251, 106048, 132560, 142502, 212096, 265120, 285004, 356255, 424192, 530240, 570008, 712510, 1060480, 1140016, 1425020, 2120960, 2280032, 2850040, 4560064, 5700080, 9120128, 11400160, 18240256, 22800320, 45600640, 91201280]

約数ペア:

[(1, 91201280), (2, 45600640), (4, 22800320), (5, 18240256), (8, 11400160), (10, 9120128), (16, 5700080), (20, 4560064), (32, 2850040), (40, 2280032), (43, 2120960), (64, 1425020), (80, 1140016), (86, 1060480), (128, 712510), (160, 570008), (172, 530240), (215, 424192), (256, 356255), (320, 285004), (344, 265120), (430, 212096), (640, 142502), (688, 132560), (860, 106048), (1280, 71251), (1376, 66280), (1657, 55040), (1720, 53024), (2752, 33140), (3314, 27520), (3440, 26512), (5504, 16570), (6628, 13760), (6880, 13256), (8285, 11008)]