2640880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3001}}^1$

素因数の和:3025

約数の個数: 40

約数和(自身を含む): 6700464

約数和(自身を除く): 4059584

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 3001, 6002, 12004, 15005, 24008, 30010, 33011, 48016, 60020, 66022, 120040, 132044, 165055, 240080, 264088, 330110, 528176, 660220, 1320440, 2640880]

約数ペア:

[(1, 2640880), (2, 1320440), (4, 660220), (5, 528176), (8, 330110), (10, 264088), (11, 240080), (16, 165055), (20, 132044), (22, 120040), (40, 66022), (44, 60020), (55, 48016), (80, 33011), (88, 30010), (110, 24008), (176, 15005), (220, 12004), (440, 6002), (880, 3001)]