1898553625

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{797}}^1$

素因数の和:907

約数の個数: 64

約数和(自身を含む): 2688940800

約数和(自身を除く): 790387175

約数列:

[1, 5, 17, 19, 25, 59, 85, 95, 125, 295, 323, 425, 475, 797, 1003, 1121, 1475, 1615, 2125, 2375, 3985, 5015, 5605, 7375, 8075, 13549, 15143, 19057, 19925, 25075, 28025, 40375, 47023, 67745, 75715, 95285, 99625, 125375, 140125, 235115, 257431, 338725, 378575, 476425, 799391, 893437, 1175575, 1287155, 1693625, 1892875, 2382125, 3996955, 4467185, 5877875, 6435775, 15188429, 19984775, 22335925, 32178875, 75942145, 99923875, 111679625, 379710725, 1898553625]

約数ペア:

[(1, 1898553625), (5, 379710725), (17, 111679625), (19, 99923875), (25, 75942145), (59, 32178875), (85, 22335925), (95, 19984775), (125, 15188429), (295, 6435775), (323, 5877875), (425, 4467185), (475, 3996955), (797, 2382125), (1003, 1892875), (1121, 1693625), (1475, 1287155), (1615, 1175575), (2125, 893437), (2375, 799391), (3985, 476425), (5015, 378575), (5605, 338725), (7375, 257431), (8075, 235115), (13549, 140125), (15143, 125375), (19057, 99625), (19925, 95285), (25075, 75715), (28025, 67745), (40375, 47023)]