990840

素因数分解:

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

素因数の和:396

約数の個数: 64

約数和(自身を含む): 3110400

約数和(自身を除く): 2119560

約数列:

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

約数ペア:

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