27555440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:378

約数の個数: 80

約数和(自身を含む): 70682976

約数和(自身を除く): 43127536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 173, 176, 181, 220, 346, 362, 440, 692, 724, 865, 880, 905, 1384, 1448, 1730, 1810, 1903, 1991, 2768, 2896, 3460, 3620, 3806, 3982, 6920, 7240, 7612, 7964, 9515, 9955, 13840, 14480, 15224, 15928, 19030, 19910, 30448, 31313, 31856, 38060, 39820, 62626, 76120, 79640, 125252, 152240, 156565, 159280, 250504, 313130, 344443, 501008, 626260, 688886, 1252520, 1377772, 1722215, 2505040, 2755544, 3444430, 5511088, 6888860, 13777720, 27555440]

約数ペア:

[(1, 27555440), (2, 13777720), (4, 6888860), (5, 5511088), (8, 3444430), (10, 2755544), (11, 2505040), (16, 1722215), (20, 1377772), (22, 1252520), (40, 688886), (44, 626260), (55, 501008), (80, 344443), (88, 313130), (110, 250504), (173, 159280), (176, 156565), (181, 152240), (220, 125252), (346, 79640), (362, 76120), (440, 62626), (692, 39820), (724, 38060), (865, 31856), (880, 31313), (905, 30448), (1384, 19910), (1448, 19030), (1730, 15928), (1810, 15224), (1903, 14480), (1991, 13840), (2768, 9955), (2896, 9515), (3460, 7964), (3620, 7612), (3806, 7240), (3982, 6920)]