156780065

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{39541}}^1$

素因数の和:39620

約数の個数: 16

約数和(自身を含む): 205934736

約数和(自身を除く): 49154671

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 39541, 197705, 514033, 2412001, 2570165, 12060005, 31356013, 156780065]

約数ペア:

[(1, 156780065), (5, 31356013), (13, 12060005), (61, 2570165), (65, 2412001), (305, 514033), (793, 197705), (3965, 39541)]