22139920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 80

約数和(自身を含む): 56871360

約数和(自身を除く): 34731440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 139, 176, 181, 220, 278, 362, 440, 556, 695, 724, 880, 905, 1112, 1390, 1448, 1529, 1810, 1991, 2224, 2780, 2896, 3058, 3620, 3982, 5560, 6116, 7240, 7645, 7964, 9955, 11120, 12232, 14480, 15290, 15928, 19910, 24464, 25159, 30580, 31856, 39820, 50318, 61160, 79640, 100636, 122320, 125795, 159280, 201272, 251590, 276749, 402544, 503180, 553498, 1006360, 1106996, 1383745, 2012720, 2213992, 2767490, 4427984, 5534980, 11069960, 22139920]

約数ペア:

[(1, 22139920), (2, 11069960), (4, 5534980), (5, 4427984), (8, 2767490), (10, 2213992), (11, 2012720), (16, 1383745), (20, 1106996), (22, 1006360), (40, 553498), (44, 503180), (55, 402544), (80, 276749), (88, 251590), (110, 201272), (139, 159280), (176, 125795), (181, 122320), (220, 100636), (278, 79640), (362, 61160), (440, 50318), (556, 39820), (695, 31856), (724, 30580), (880, 25159), (905, 24464), (1112, 19910), (1390, 15928), (1448, 15290), (1529, 14480), (1810, 12232), (1991, 11120), (2224, 9955), (2780, 7964), (2896, 7645), (3058, 7240), (3620, 6116), (3982, 5560)]