81799770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{209743}}^1$

素因数の和:209766

約数の個数: 32

約数和(自身を含む): 211421952

約数和(自身を除く): 129622182

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 209743, 419486, 629229, 1048715, 1258458, 2097430, 2726659, 3146145, 5453318, 6292290, 8179977, 13633295, 16359954, 27266590, 40899885, 81799770]

約数ペア:

[(1, 81799770), (2, 40899885), (3, 27266590), (5, 16359954), (6, 13633295), (10, 8179977), (13, 6292290), (15, 5453318), (26, 3146145), (30, 2726659), (39, 2097430), (65, 1258458), (78, 1048715), (130, 629229), (195, 419486), (390, 209743)]