28439280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{39499}}^1$

素因数の和:39518

約数の個数: 60

約数和(自身を含む): 95511000

約数和(自身を除く): 67071720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 39499, 78998, 118497, 157996, 197495, 236994, 315992, 355491, 394990, 473988, 592485, 631984, 710982, 789980, 947976, 1184970, 1421964, 1579960, 1777455, 1895952, 2369940, 2843928, 3159920, 3554910, 4739880, 5687856, 7109820, 9479760, 14219640, 28439280]

約数ペア:

[(1, 28439280), (2, 14219640), (3, 9479760), (4, 7109820), (5, 5687856), (6, 4739880), (8, 3554910), (9, 3159920), (10, 2843928), (12, 2369940), (15, 1895952), (16, 1777455), (18, 1579960), (20, 1421964), (24, 1184970), (30, 947976), (36, 789980), (40, 710982), (45, 631984), (48, 592485), (60, 473988), (72, 394990), (80, 355491), (90, 315992), (120, 236994), (144, 197495), (180, 157996), (240, 118497), (360, 78998), (720, 39499)]