80255980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{33721}}^1$

素因数の和:33754

約数の個数: 48

約数和(自身を含む): 203950656

約数和(自身を除く): 123694676

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 33721, 67442, 134884, 168605, 236047, 337210, 472094, 573257, 674420, 944188, 1146514, 1180235, 2293028, 2360470, 2866285, 4012799, 4720940, 5732570, 8025598, 11465140, 16051196, 20063995, 40127990, 80255980]

約数ペア:

[(1, 80255980), (2, 40127990), (4, 20063995), (5, 16051196), (7, 11465140), (10, 8025598), (14, 5732570), (17, 4720940), (20, 4012799), (28, 2866285), (34, 2360470), (35, 2293028), (68, 1180235), (70, 1146514), (85, 944188), (119, 674420), (140, 573257), (170, 472094), (238, 337210), (340, 236047), (476, 168605), (595, 134884), (1190, 67442), (2380, 33721)]