20750240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 36149344

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 97, 112, 140, 160, 191, 194, 224, 280, 382, 388, 485, 560, 679, 764, 776, 955, 970, 1120, 1337, 1358, 1528, 1552, 1910, 1940, 2674, 2716, 3056, 3104, 3395, 3820, 3880, 5348, 5432, 6112, 6685, 6790, 7640, 7760, 10696, 10864, 13370, 13580, 15280, 15520, 18527, 21392, 21728, 26740, 27160, 30560, 37054, 42784, 53480, 54320, 74108, 92635, 106960, 108640, 129689, 148216, 185270, 213920, 259378, 296432, 370540, 518756, 592864, 648445, 741080, 1037512, 1296890, 1482160, 2075024, 2593780, 2964320, 4150048, 5187560, 10375120, 20750240]

約数ペア:

[(1, 20750240), (2, 10375120), (4, 5187560), (5, 4150048), (7, 2964320), (8, 2593780), (10, 2075024), (14, 1482160), (16, 1296890), (20, 1037512), (28, 741080), (32, 648445), (35, 592864), (40, 518756), (56, 370540), (70, 296432), (80, 259378), (97, 213920), (112, 185270), (140, 148216), (160, 129689), (191, 108640), (194, 106960), (224, 92635), (280, 74108), (382, 54320), (388, 53480), (485, 42784), (560, 37054), (679, 30560), (764, 27160), (776, 26740), (955, 21728), (970, 21392), (1120, 18527), (1337, 15520), (1358, 15280), (1528, 13580), (1552, 13370), (1910, 10864), (1940, 10696), (2674, 7760), (2716, 7640), (3056, 6790), (3104, 6685), (3395, 6112), (3820, 5432), (3880, 5348)]