28109840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1879}}^1$

素因数の和:1920

約数の個数: 80

約数和(自身を含む): 75530880

約数和(自身を除く): 47421040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1496, 1870, 1879, 2992, 3740, 3758, 7480, 7516, 9395, 14960, 15032, 18790, 20669, 30064, 31943, 37580, 41338, 63886, 75160, 82676, 103345, 127772, 150320, 159715, 165352, 206690, 255544, 319430, 330704, 351373, 413380, 511088, 638860, 702746, 826760, 1277720, 1405492, 1653520, 1756865, 2555440, 2810984, 3513730, 5621968, 7027460, 14054920, 28109840]

約数ペア:

[(1, 28109840), (2, 14054920), (4, 7027460), (5, 5621968), (8, 3513730), (10, 2810984), (11, 2555440), (16, 1756865), (17, 1653520), (20, 1405492), (22, 1277720), (34, 826760), (40, 702746), (44, 638860), (55, 511088), (68, 413380), (80, 351373), (85, 330704), (88, 319430), (110, 255544), (136, 206690), (170, 165352), (176, 159715), (187, 150320), (220, 127772), (272, 103345), (340, 82676), (374, 75160), (440, 63886), (680, 41338), (748, 37580), (880, 31943), (935, 30064), (1360, 20669), (1496, 18790), (1870, 15032), (1879, 14960), (2992, 9395), (3740, 7516), (3758, 7480)]