28244720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1678

約数の個数: 80

約数和(自身を含む): 77518848

約数和(自身を除く): 49274128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1627, 1736, 2170, 2480, 3254, 3472, 4340, 6508, 8135, 8680, 11389, 13016, 16270, 17360, 22778, 26032, 32540, 45556, 50437, 56945, 65080, 91112, 100874, 113890, 130160, 182224, 201748, 227780, 252185, 353059, 403496, 455560, 504370, 706118, 806992, 911120, 1008740, 1412236, 1765295, 2017480, 2824472, 3530590, 4034960, 5648944, 7061180, 14122360, 28244720]

約数ペア:

[(1, 28244720), (2, 14122360), (4, 7061180), (5, 5648944), (7, 4034960), (8, 3530590), (10, 2824472), (14, 2017480), (16, 1765295), (20, 1412236), (28, 1008740), (31, 911120), (35, 806992), (40, 706118), (56, 504370), (62, 455560), (70, 403496), (80, 353059), (112, 252185), (124, 227780), (140, 201748), (155, 182224), (217, 130160), (248, 113890), (280, 100874), (310, 91112), (434, 65080), (496, 56945), (560, 50437), (620, 45556), (868, 32540), (1085, 26032), (1240, 22778), (1627, 17360), (1736, 16270), (2170, 13016), (2480, 11389), (3254, 8680), (3472, 8135), (4340, 6508)]