20484692020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{196477}}^1$

素因数の和:196900

約数の個数: 48

約数和(自身を含む): 46442683728

約数和(自身を除く): 25957991708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 401, 802, 1604, 2005, 4010, 5213, 8020, 10426, 20852, 26065, 52130, 104260, 196477, 392954, 785908, 982385, 1964770, 2554201, 3929540, 5108402, 10216804, 12771005, 25542010, 51084020, 78787277, 157574554, 315149108, 393936385, 787872770, 1024234601, 1575745540, 2048469202, 4096938404, 5121173005, 10242346010, 20484692020]

約数ペア:

[(1, 20484692020), (2, 10242346010), (4, 5121173005), (5, 4096938404), (10, 2048469202), (13, 1575745540), (20, 1024234601), (26, 787872770), (52, 393936385), (65, 315149108), (130, 157574554), (260, 78787277), (401, 51084020), (802, 25542010), (1604, 12771005), (2005, 10216804), (4010, 5108402), (5213, 3929540), (8020, 2554201), (10426, 1964770), (20852, 982385), (26065, 785908), (52130, 392954), (104260, 196477)]