1331505565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{706369}}^1$

素因数の和:706416

約数の個数: 16

約数和(自身を含む): 1780052400

約数和(自身を除く): 448546835

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 706369, 3531845, 9182797, 20484701, 45913985, 102423505, 266301113, 1331505565]

約数ペア:

[(1, 1331505565), (5, 266301113), (13, 102423505), (29, 45913985), (65, 20484701), (145, 9182797), (377, 3531845), (1885, 706369)]