78922540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{883}}^1$

素因数の和:1042

約数の個数: 48

約数和(自身を含む): 171531360

約数和(自身を除く): 92608820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 820, 883, 1090, 1766, 2180, 3532, 4415, 4469, 8830, 8938, 17660, 17876, 22345, 36203, 44690, 72406, 89380, 96247, 144812, 181015, 192494, 362030, 384988, 481235, 724060, 962470, 1924940, 3946127, 7892254, 15784508, 19730635, 39461270, 78922540]

約数ペア:

[(1, 78922540), (2, 39461270), (4, 19730635), (5, 15784508), (10, 7892254), (20, 3946127), (41, 1924940), (82, 962470), (109, 724060), (164, 481235), (205, 384988), (218, 362030), (410, 192494), (436, 181015), (545, 144812), (820, 96247), (883, 89380), (1090, 72406), (1766, 44690), (2180, 36203), (3532, 22345), (4415, 17876), (4469, 17660), (8830, 8938)]