18820960

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1489}}^1$

素因数の和:1583

約数の個数: 48

約数和(自身を含む): 45057600

約数和(自身を除く): 26236640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1489, 1580, 2528, 2978, 3160, 5956, 6320, 7445, 11912, 12640, 14890, 23824, 29780, 47648, 59560, 117631, 119120, 235262, 238240, 470524, 588155, 941048, 1176310, 1882096, 2352620, 3764192, 4705240, 9410480, 18820960]

約数ペア:

[(1, 18820960), (2, 9410480), (4, 4705240), (5, 3764192), (8, 2352620), (10, 1882096), (16, 1176310), (20, 941048), (32, 588155), (40, 470524), (79, 238240), (80, 235262), (158, 119120), (160, 117631), (316, 59560), (395, 47648), (632, 29780), (790, 23824), (1264, 14890), (1489, 12640), (1580, 11912), (2528, 7445), (2978, 6320), (3160, 5956)]