28107040

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13513}}^1$

素因数の和:13541

約数の個数: 48

約数和(自身を含む): 71516088

約数和(自身を除く): 43409048

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 13513, 27026, 54052, 67565, 108104, 135130, 175669, 216208, 270260, 351338, 432416, 540520, 702676, 878345, 1081040, 1405352, 1756690, 2162080, 2810704, 3513380, 5621408, 7026760, 14053520, 28107040]

約数ペア:

[(1, 28107040), (2, 14053520), (4, 7026760), (5, 5621408), (8, 3513380), (10, 2810704), (13, 2162080), (16, 1756690), (20, 1405352), (26, 1081040), (32, 878345), (40, 702676), (52, 540520), (65, 432416), (80, 351338), (104, 270260), (130, 216208), (160, 175669), (208, 135130), (260, 108104), (416, 67565), (520, 54052), (1040, 27026), (2080, 13513)]