1981680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 6428160

約数和(自身を除く): 4446480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 359, 368, 460, 552, 690, 718, 920, 1077, 1104, 1380, 1436, 1795, 1840, 2154, 2760, 2872, 3590, 4308, 5385, 5520, 5744, 7180, 8257, 8616, 10770, 14360, 16514, 17232, 21540, 24771, 28720, 33028, 41285, 43080, 49542, 66056, 82570, 86160, 99084, 123855, 132112, 165140, 198168, 247710, 330280, 396336, 495420, 660560, 990840, 1981680]

約数ペア:

[(1, 1981680), (2, 990840), (3, 660560), (4, 495420), (5, 396336), (6, 330280), (8, 247710), (10, 198168), (12, 165140), (15, 132112), (16, 123855), (20, 99084), (23, 86160), (24, 82570), (30, 66056), (40, 49542), (46, 43080), (48, 41285), (60, 33028), (69, 28720), (80, 24771), (92, 21540), (115, 17232), (120, 16514), (138, 14360), (184, 10770), (230, 8616), (240, 8257), (276, 7180), (345, 5744), (359, 5520), (368, 5385), (460, 4308), (552, 3590), (690, 2872), (718, 2760), (920, 2154), (1077, 1840), (1104, 1795), (1380, 1436)]