645416925

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{277}}^1\times {\mathrm{661}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 1095382272

約数和(自身を除く): 449965347

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 277, 661, 705, 831, 1175, 1385, 1983, 3305, 3525, 4155, 6925, 9915, 13019, 16525, 20775, 31067, 39057, 49575, 65095, 93201, 155335, 183097, 195285, 325475, 466005, 549291, 776675, 915485, 976425, 2330025, 2746455, 4577425, 8605559, 13732275, 25816677, 43027795, 129083385, 215138975, 645416925]

約数ペア:

[(1, 645416925), (3, 215138975), (5, 129083385), (15, 43027795), (25, 25816677), (47, 13732275), (75, 8605559), (141, 4577425), (235, 2746455), (277, 2330025), (661, 976425), (705, 915485), (831, 776675), (1175, 549291), (1385, 466005), (1983, 325475), (3305, 195285), (3525, 183097), (4155, 155335), (6925, 93201), (9915, 65095), (13019, 49575), (16525, 39057), (20775, 31067)]