2020199139

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{5717}}^1$

素因数の和:5880

約数の個数: 48

約数和(自身を含む): 3425310720

約数和(自身を除く): 1405111581

約数列:

[1, 3, 7, 9, 21, 63, 71, 79, 213, 237, 497, 553, 639, 711, 1491, 1659, 4473, 4977, 5609, 5717, 16827, 17151, 39263, 40019, 50481, 51453, 117789, 120057, 353367, 360171, 405907, 451643, 1217721, 1354929, 2841349, 3161501, 3653163, 4064787, 8524047, 9484503, 25572141, 28453509, 32066653, 96199959, 224466571, 288599877, 673399713, 2020199139]

約数ペア:

[(1, 2020199139), (3, 673399713), (7, 288599877), (9, 224466571), (21, 96199959), (63, 32066653), (71, 28453509), (79, 25572141), (213, 9484503), (237, 8524047), (497, 4064787), (553, 3653163), (639, 3161501), (711, 2841349), (1491, 1354929), (1659, 1217721), (4473, 451643), (4977, 405907), (5609, 360171), (5717, 353367), (16827, 120057), (17151, 117789), (39263, 51453), (40019, 50481)]