20187409715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1321}}^1\times {\mathrm{8963}}^1$

素因数の和:10331

約数の個数: 32

約数和(自身を含む): 27303340032

約数和(自身を除く): 7115930317

約数列:

[1, 5, 11, 31, 55, 155, 341, 1321, 1705, 6605, 8963, 14531, 40951, 44815, 72655, 98593, 204755, 277853, 450461, 492965, 1389265, 2252305, 3056383, 11840123, 15281915, 59200615, 130241353, 367043813, 651206765, 1835219065, 4037481943, 20187409715]

約数ペア:

[(1, 20187409715), (5, 4037481943), (11, 1835219065), (31, 651206765), (55, 367043813), (155, 130241353), (341, 59200615), (1321, 15281915), (1705, 11840123), (6605, 3056383), (8963, 2252305), (14531, 1389265), (40951, 492965), (44815, 450461), (72655, 277853), (98593, 204755)]