20793037840

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{586711}}^1$

素因数の和:587167

約数の個数: 40

約数和(自身を含む): 48453023808

約数和(自身を除く): 27659985968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 3544, 4430, 7088, 8860, 17720, 35440, 586711, 1173422, 2346844, 2933555, 4693688, 5867110, 9387376, 11734220, 23468440, 46936880, 259912973, 519825946, 1039651892, 1299564865, 2079303784, 2599129730, 4158607568, 5198259460, 10396518920, 20793037840]

約数ペア:

[(1, 20793037840), (2, 10396518920), (4, 5198259460), (5, 4158607568), (8, 2599129730), (10, 2079303784), (16, 1299564865), (20, 1039651892), (40, 519825946), (80, 259912973), (443, 46936880), (886, 23468440), (1772, 11734220), (2215, 9387376), (3544, 5867110), (4430, 4693688), (7088, 2933555), (8860, 2346844), (17720, 1173422), (35440, 586711)]