2011897225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 2753823744

約数和(自身を除く): 741926519

約数列:

[1, 5, 13, 25, 53, 65, 265, 271, 325, 431, 689, 1325, 1355, 2155, 3445, 3523, 5603, 6775, 10775, 14363, 17225, 17615, 22843, 28015, 71815, 88075, 114215, 116801, 140075, 186719, 296959, 359075, 571075, 584005, 933595, 1484795, 1518413, 2920025, 4667975, 6190453, 7423975, 7592065, 30952265, 37960325, 80475889, 154761325, 402379445, 2011897225]

約数ペア:

[(1, 2011897225), (5, 402379445), (13, 154761325), (25, 80475889), (53, 37960325), (65, 30952265), (265, 7592065), (271, 7423975), (325, 6190453), (431, 4667975), (689, 2920025), (1325, 1518413), (1355, 1484795), (2155, 933595), (3445, 584005), (3523, 571075), (5603, 359075), (6775, 296959), (10775, 186719), (14363, 140075), (17225, 116801), (17615, 114215), (22843, 88075), (28015, 71815)]