1020080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:365

約数の個数: 40

約数和(自身を含む): 2437344

約数和(自身を除く): 1417264

約数列:

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

約数ペア:

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