85121840

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{17443}}^1$

素因数の和:17517

約数の個数: 40

約数和(自身を含む): 201164208

約数和(自身を除く): 116042368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 17443, 34886, 69772, 87215, 139544, 174430, 279088, 348860, 697720, 1064023, 1395440, 2128046, 4256092, 5320115, 8512184, 10640230, 17024368, 21280460, 42560920, 85121840]

約数ペア:

[(1, 85121840), (2, 42560920), (4, 21280460), (5, 17024368), (8, 10640230), (10, 8512184), (16, 5320115), (20, 4256092), (40, 2128046), (61, 1395440), (80, 1064023), (122, 697720), (244, 348860), (305, 279088), (488, 174430), (610, 139544), (976, 87215), (1220, 69772), (2440, 34886), (4880, 17443)]