780260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3001}}^1$

素因数の和:3023

約数の個数: 24

約数和(自身を含む): 1765176

約数和(自身を除く): 984916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3001, 6002, 12004, 15005, 30010, 39013, 60020, 78026, 156052, 195065, 390130, 780260]

約数ペア:

[(1, 780260), (2, 390130), (4, 195065), (5, 156052), (10, 78026), (13, 60020), (20, 39013), (26, 30010), (52, 15005), (65, 12004), (130, 6002), (260, 3001)]