2040160

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 4953312

約数和(自身を除く): 2913152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 311, 328, 410, 622, 656, 820, 1244, 1312, 1555, 1640, 2488, 3110, 3280, 4976, 6220, 6560, 9952, 12440, 12751, 24880, 25502, 49760, 51004, 63755, 102008, 127510, 204016, 255020, 408032, 510040, 1020080, 2040160]

約数ペア:

[(1, 2040160), (2, 1020080), (4, 510040), (5, 408032), (8, 255020), (10, 204016), (16, 127510), (20, 102008), (32, 63755), (40, 51004), (41, 49760), (80, 25502), (82, 24880), (160, 12751), (164, 12440), (205, 9952), (311, 6560), (328, 6220), (410, 4976), (622, 3280), (656, 3110), (820, 2488), (1244, 1640), (1312, 1555)]