51551920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13151}}^1$

素因数の和:13178

約数の個数: 60

約数和(自身を含む): 139437504

約数和(自身を除く): 87885584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 13151, 26302, 52604, 65755, 92057, 105208, 131510, 184114, 210416, 263020, 368228, 460285, 526040, 644399, 736456, 920570, 1052080, 1288798, 1472912, 1841140, 2577596, 3221995, 3682280, 5155192, 6443990, 7364560, 10310384, 12887980, 25775960, 51551920]

約数ペア:

[(1, 51551920), (2, 25775960), (4, 12887980), (5, 10310384), (7, 7364560), (8, 6443990), (10, 5155192), (14, 3682280), (16, 3221995), (20, 2577596), (28, 1841140), (35, 1472912), (40, 1288798), (49, 1052080), (56, 920570), (70, 736456), (80, 644399), (98, 526040), (112, 460285), (140, 368228), (196, 263020), (245, 210416), (280, 184114), (392, 131510), (490, 105208), (560, 92057), (784, 65755), (980, 52604), (1960, 26302), (3920, 13151)]