81491040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{56591}}^1$

素因数の和:56612

約数の個数: 72

約数和(自身を含む): 278093088

約数和(自身を除く): 196602048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 56591, 113182, 169773, 226364, 282955, 339546, 452728, 509319, 565910, 679092, 848865, 905456, 1018638, 1131820, 1358184, 1697730, 1810912, 2037276, 2263640, 2546595, 2716368, 3395460, 4074552, 4527280, 5093190, 5432736, 6790920, 8149104, 9054560, 10186380, 13581840, 16298208, 20372760, 27163680, 40745520, 81491040]

約数ペア:

[(1, 81491040), (2, 40745520), (3, 27163680), (4, 20372760), (5, 16298208), (6, 13581840), (8, 10186380), (9, 9054560), (10, 8149104), (12, 6790920), (15, 5432736), (16, 5093190), (18, 4527280), (20, 4074552), (24, 3395460), (30, 2716368), (32, 2546595), (36, 2263640), (40, 2037276), (45, 1810912), (48, 1697730), (60, 1358184), (72, 1131820), (80, 1018638), (90, 905456), (96, 848865), (120, 679092), (144, 565910), (160, 509319), (180, 452728), (240, 339546), (288, 282955), (360, 226364), (480, 169773), (720, 113182), (1440, 56591)]