78895310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19577}}^1$

素因数の和:19628

約数の個数: 32

約数和(自身を含む): 157876992

約数和(自身を除く): 78981682

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 19577, 39154, 97885, 195770, 254501, 509002, 606887, 1213774, 1272505, 2545010, 3034435, 6068870, 7889531, 15779062, 39447655, 78895310]

約数ペア:

[(1, 78895310), (2, 39447655), (5, 15779062), (10, 7889531), (13, 6068870), (26, 3034435), (31, 2545010), (62, 1272505), (65, 1213774), (130, 606887), (155, 509002), (310, 254501), (403, 195770), (806, 97885), (2015, 39154), (4030, 19577)]