78157690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{16249}}^1$

素因数の和:16306

約数の個数: 32

約数和(自身を含む): 155610000

約数和(自身を除く): 77452310

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4810, 16249, 32498, 81245, 162490, 211237, 422474, 601213, 1056185, 1202426, 2112370, 3006065, 6012130, 7815769, 15631538, 39078845, 78157690]

約数ペア:

[(1, 78157690), (2, 39078845), (5, 15631538), (10, 7815769), (13, 6012130), (26, 3006065), (37, 2112370), (65, 1202426), (74, 1056185), (130, 601213), (185, 422474), (370, 211237), (481, 162490), (962, 81245), (2405, 32498), (4810, 16249)]