21120480

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4889}}^1$

素因数の和:4913

約数の個数: 96

約数和(自身を含む): 73936800

約数和(自身を除く): 52816320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4889, 9778, 14667, 19556, 24445, 29334, 39112, 44001, 48890, 58668, 73335, 78224, 88002, 97780, 117336, 132003, 146670, 156448, 176004, 195560, 220005, 234672, 264006, 293340, 352008, 391120, 440010, 469344, 528012, 586680, 660015, 704016, 782240, 880020, 1056024, 1173360, 1320030, 1408032, 1760040, 2112048, 2346720, 2640060, 3520080, 4224096, 5280120, 7040160, 10560240, 21120480]

約数ペア:

[(1, 21120480), (2, 10560240), (3, 7040160), (4, 5280120), (5, 4224096), (6, 3520080), (8, 2640060), (9, 2346720), (10, 2112048), (12, 1760040), (15, 1408032), (16, 1320030), (18, 1173360), (20, 1056024), (24, 880020), (27, 782240), (30, 704016), (32, 660015), (36, 586680), (40, 528012), (45, 469344), (48, 440010), (54, 391120), (60, 352008), (72, 293340), (80, 264006), (90, 234672), (96, 220005), (108, 195560), (120, 176004), (135, 156448), (144, 146670), (160, 132003), (180, 117336), (216, 97780), (240, 88002), (270, 78224), (288, 73335), (360, 58668), (432, 48890), (480, 44001), (540, 39112), (720, 29334), (864, 24445), (1080, 19556), (1440, 14667), (2160, 9778), (4320, 4889)]