89169220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{90989}}^1$

素因数の和:91012

約数の個数: 36

約数和(自身を含む): 217830060

約数和(自身を除く): 128660840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 90989, 181978, 363956, 454945, 636923, 909890, 1273846, 1819780, 2547692, 3184615, 4458461, 6369230, 8916922, 12738460, 17833844, 22292305, 44584610, 89169220]

約数ペア:

[(1, 89169220), (2, 44584610), (4, 22292305), (5, 17833844), (7, 12738460), (10, 8916922), (14, 6369230), (20, 4458461), (28, 3184615), (35, 2547692), (49, 1819780), (70, 1273846), (98, 909890), (140, 636923), (196, 454945), (245, 363956), (490, 181978), (980, 90989)]