201990165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{1601}}^1$

素因数の和:2269

約数の個数: 32

約数和(自身を含む): 348800256

約数和(自身を除く): 146810091

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 647, 1601, 1941, 3235, 4803, 8005, 8411, 9705, 20813, 24015, 25233, 42055, 62439, 104065, 126165, 312195, 1035847, 3107541, 5179235, 13466011, 15537705, 40398033, 67330055, 201990165]

約数ペア:

[(1, 201990165), (3, 67330055), (5, 40398033), (13, 15537705), (15, 13466011), (39, 5179235), (65, 3107541), (195, 1035847), (647, 312195), (1601, 126165), (1941, 104065), (3235, 62439), (4803, 42055), (8005, 25233), (8411, 24015), (9705, 20813)]