2640440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 6881760

約数和(自身を除く): 4241320

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 353, 374, 440, 680, 706, 748, 935, 1412, 1496, 1765, 1870, 2824, 3530, 3740, 3883, 6001, 7060, 7480, 7766, 12002, 14120, 15532, 19415, 24004, 30005, 31064, 38830, 48008, 60010, 66011, 77660, 120020, 132022, 155320, 240040, 264044, 330055, 528088, 660110, 1320220, 2640440]

約数ペア:

[(1, 2640440), (2, 1320220), (4, 660110), (5, 528088), (8, 330055), (10, 264044), (11, 240040), (17, 155320), (20, 132022), (22, 120020), (34, 77660), (40, 66011), (44, 60010), (55, 48008), (68, 38830), (85, 31064), (88, 30005), (110, 24004), (136, 19415), (170, 15532), (187, 14120), (220, 12002), (340, 7766), (353, 7480), (374, 7060), (440, 6001), (680, 3883), (706, 3740), (748, 3530), (935, 2824), (1412, 1870), (1496, 1765)]