1900485585

素因数分解:

$3^4\times 5^1\times {\mathrm{4692557}}^1$

素因数の和:4692574

約数の個数: 20

約数和(自身を含む): 3406797108

約数和(自身を除く): 1506311523

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 4692557, 14077671, 23462785, 42233013, 70388355, 126699039, 211165065, 380097117, 633495195, 1900485585]

約数ペア:

[(1, 1900485585), (3, 633495195), (5, 380097117), (9, 211165065), (15, 126699039), (27, 70388355), (45, 42233013), (81, 23462785), (135, 14077671), (405, 4692557)]