66081920

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1307}}^1$

素因数の和:1405

約数の個数: 64

約数和(自身を含む): 160099200

約数和(自身を除く): 94017280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 316, 320, 395, 632, 640, 790, 1264, 1307, 1580, 2528, 2614, 3160, 5056, 5228, 6320, 6535, 10112, 10456, 12640, 13070, 20912, 25280, 26140, 41824, 50560, 52280, 83648, 103253, 104560, 167296, 206506, 209120, 413012, 418240, 516265, 826024, 836480, 1032530, 1652048, 2065060, 3304096, 4130120, 6608192, 8260240, 13216384, 16520480, 33040960, 66081920]

約数ペア:

[(1, 66081920), (2, 33040960), (4, 16520480), (5, 13216384), (8, 8260240), (10, 6608192), (16, 4130120), (20, 3304096), (32, 2065060), (40, 1652048), (64, 1032530), (79, 836480), (80, 826024), (128, 516265), (158, 418240), (160, 413012), (316, 209120), (320, 206506), (395, 167296), (632, 104560), (640, 103253), (790, 83648), (1264, 52280), (1307, 50560), (1580, 41824), (2528, 26140), (2614, 25280), (3160, 20912), (5056, 13070), (5228, 12640), (6320, 10456), (6535, 10112)]