80864560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{733}}^1$

素因数の和:950

約数の個数: 80

約数和(自身を含む): 216254016

約数和(自身を除く): 135389456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 733, 788, 985, 1379, 1466, 1576, 1970, 2758, 2932, 3152, 3665, 3940, 5131, 5516, 5864, 6895, 7330, 7880, 10262, 11032, 11728, 13790, 14660, 15760, 20524, 22064, 25655, 27580, 29320, 41048, 51310, 55160, 58640, 82096, 102620, 110320, 144401, 205240, 288802, 410480, 577604, 722005, 1010807, 1155208, 1444010, 2021614, 2310416, 2888020, 4043228, 5054035, 5776040, 8086456, 10108070, 11552080, 16172912, 20216140, 40432280, 80864560]

約数ペア:

[(1, 80864560), (2, 40432280), (4, 20216140), (5, 16172912), (7, 11552080), (8, 10108070), (10, 8086456), (14, 5776040), (16, 5054035), (20, 4043228), (28, 2888020), (35, 2310416), (40, 2021614), (56, 1444010), (70, 1155208), (80, 1010807), (112, 722005), (140, 577604), (197, 410480), (280, 288802), (394, 205240), (560, 144401), (733, 110320), (788, 102620), (985, 82096), (1379, 58640), (1466, 55160), (1576, 51310), (1970, 41048), (2758, 29320), (2932, 27580), (3152, 25655), (3665, 22064), (3940, 20524), (5131, 15760), (5516, 14660), (5864, 13790), (6895, 11728), (7330, 11032), (7880, 10262)]