8339840

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 20306160

約数和(自身を除く): 11966320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 157, 160, 166, 314, 320, 332, 415, 628, 640, 664, 785, 830, 1256, 1328, 1570, 1660, 2512, 2656, 3140, 3320, 5024, 5312, 6280, 6640, 10048, 10624, 12560, 13031, 13280, 20096, 25120, 26062, 26560, 50240, 52124, 53120, 65155, 100480, 104248, 130310, 208496, 260620, 416992, 521240, 833984, 1042480, 1667968, 2084960, 4169920, 8339840]

約数ペア:

[(1, 8339840), (2, 4169920), (4, 2084960), (5, 1667968), (8, 1042480), (10, 833984), (16, 521240), (20, 416992), (32, 260620), (40, 208496), (64, 130310), (80, 104248), (83, 100480), (128, 65155), (157, 53120), (160, 52124), (166, 50240), (314, 26560), (320, 26062), (332, 25120), (415, 20096), (628, 13280), (640, 13031), (664, 12560), (785, 10624), (830, 10048), (1256, 6640), (1328, 6280), (1570, 5312), (1660, 5024), (2512, 3320), (2656, 3140)]