131478620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5557}}^1$

素因数の和:5599

約数の個数: 72

約数和(自身を含む): 341750304

約数和(自身を除く): 210271684

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 169, 182, 260, 338, 364, 455, 676, 845, 910, 1183, 1690, 1820, 2366, 3380, 4732, 5557, 5915, 11114, 11830, 22228, 23660, 27785, 38899, 55570, 72241, 77798, 111140, 144482, 155596, 194495, 288964, 361205, 388990, 505687, 722410, 777980, 939133, 1011374, 1444820, 1878266, 2022748, 2528435, 3756532, 4695665, 5056870, 6573931, 9391330, 10113740, 13147862, 18782660, 26295724, 32869655, 65739310, 131478620]

約数ペア:

[(1, 131478620), (2, 65739310), (4, 32869655), (5, 26295724), (7, 18782660), (10, 13147862), (13, 10113740), (14, 9391330), (20, 6573931), (26, 5056870), (28, 4695665), (35, 3756532), (52, 2528435), (65, 2022748), (70, 1878266), (91, 1444820), (130, 1011374), (140, 939133), (169, 777980), (182, 722410), (260, 505687), (338, 388990), (364, 361205), (455, 288964), (676, 194495), (845, 155596), (910, 144482), (1183, 111140), (1690, 77798), (1820, 72241), (2366, 55570), (3380, 38899), (4732, 27785), (5557, 23660), (5915, 22228), (11114, 11830)]