989844020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{32369}}^1$

素因数の和:32528

約数の個数: 48

約数和(自身を含む): 2284027200

約数和(自身を除く): 1294183180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2780, 3058, 6116, 7645, 15290, 30580, 32369, 64738, 129476, 161845, 323690, 356059, 647380, 712118, 1424236, 1780295, 3560590, 4499291, 7121180, 8998582, 17997164, 22496455, 44992910, 49492201, 89985820, 98984402, 197968804, 247461005, 494922010, 989844020]

約数ペア:

[(1, 989844020), (2, 494922010), (4, 247461005), (5, 197968804), (10, 98984402), (11, 89985820), (20, 49492201), (22, 44992910), (44, 22496455), (55, 17997164), (110, 8998582), (139, 7121180), (220, 4499291), (278, 3560590), (556, 1780295), (695, 1424236), (1390, 712118), (1529, 647380), (2780, 356059), (3058, 323690), (6116, 161845), (7645, 129476), (15290, 64738), (30580, 32369)]