81368780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{2647}}^1$

素因数の和:2738

約数の個数: 48

約数和(自身を含む): 180169920

約数和(自身を除く): 98801140

約数列:

[1, 2, 4, 5, 10, 20, 29, 53, 58, 106, 116, 145, 212, 265, 290, 530, 580, 1060, 1537, 2647, 3074, 5294, 6148, 7685, 10588, 13235, 15370, 26470, 30740, 52940, 76763, 140291, 153526, 280582, 307052, 383815, 561164, 701455, 767630, 1402910, 1535260, 2805820, 4068439, 8136878, 16273756, 20342195, 40684390, 81368780]

約数ペア:

[(1, 81368780), (2, 40684390), (4, 20342195), (5, 16273756), (10, 8136878), (20, 4068439), (29, 2805820), (53, 1535260), (58, 1402910), (106, 767630), (116, 701455), (145, 561164), (212, 383815), (265, 307052), (290, 280582), (530, 153526), (580, 140291), (1060, 76763), (1537, 52940), (2647, 30740), (3074, 26470), (5294, 15370), (6148, 13235), (7685, 10588)]