28820440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3853}}^1$

素因数の和:3892

約数の個数: 64

約数和(自身を含む): 74921760

約数和(自身を除く): 46101320

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, 374, 440, 680, 748, 935, 1496, 1870, 3740, 3853, 7480, 7706, 15412, 19265, 30824, 38530, 42383, 65501, 77060, 84766, 131002, 154120, 169532, 211915, 262004, 327505, 339064, 423830, 524008, 655010, 720511, 847660, 1310020, 1441022, 1695320, 2620040, 2882044, 3602555, 5764088, 7205110, 14410220, 28820440]

約数ペア:

[(1, 28820440), (2, 14410220), (4, 7205110), (5, 5764088), (8, 3602555), (10, 2882044), (11, 2620040), (17, 1695320), (20, 1441022), (22, 1310020), (34, 847660), (40, 720511), (44, 655010), (55, 524008), (68, 423830), (85, 339064), (88, 327505), (110, 262004), (136, 211915), (170, 169532), (187, 154120), (220, 131002), (340, 84766), (374, 77060), (440, 65501), (680, 42383), (748, 38530), (935, 30824), (1496, 19265), (1870, 15412), (3740, 7706), (3853, 7480)]