31813145

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2411}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 48625920

約数和(自身を除く): 16812775

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1885, 2411, 2639, 12055, 13195, 16877, 31343, 69919, 84385, 156715, 219401, 349595, 489433, 908947, 1097005, 2447165, 4544735, 6362629, 31813145]

約数ペア:

[(1, 31813145), (5, 6362629), (7, 4544735), (13, 2447165), (29, 1097005), (35, 908947), (65, 489433), (91, 349595), (145, 219401), (203, 156715), (377, 84385), (455, 69919), (1015, 31343), (1885, 16877), (2411, 13195), (2639, 12055)]