20176640

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1433}}^1$

素因数の和:1465

約数の個数: 72

約数和(自身を含む): 52759728

約数和(自身を除く): 32583088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1433, 1760, 2816, 2866, 3520, 5732, 7040, 7165, 11464, 14080, 14330, 15763, 22928, 28660, 31526, 45856, 57320, 63052, 78815, 91712, 114640, 126104, 157630, 183424, 229280, 252208, 315260, 366848, 458560, 504416, 630520, 917120, 1008832, 1261040, 1834240, 2017664, 2522080, 4035328, 5044160, 10088320, 20176640]

約数ペア:

[(1, 20176640), (2, 10088320), (4, 5044160), (5, 4035328), (8, 2522080), (10, 2017664), (11, 1834240), (16, 1261040), (20, 1008832), (22, 917120), (32, 630520), (40, 504416), (44, 458560), (55, 366848), (64, 315260), (80, 252208), (88, 229280), (110, 183424), (128, 157630), (160, 126104), (176, 114640), (220, 91712), (256, 78815), (320, 63052), (352, 57320), (440, 45856), (640, 31526), (704, 28660), (880, 22928), (1280, 15763), (1408, 14330), (1433, 14080), (1760, 11464), (2816, 7165), (2866, 7040), (3520, 5732)]