19564415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 26671680

約数和(自身を除く): 7107265

約数列:

[1, 5, 13, 29, 65, 97, 107, 145, 377, 485, 535, 1261, 1391, 1885, 2813, 3103, 6305, 6955, 10379, 14065, 15515, 36569, 40339, 51895, 134927, 182845, 201695, 300991, 674635, 1504955, 3912883, 19564415]

約数ペア:

[(1, 19564415), (5, 3912883), (13, 1504955), (29, 674635), (65, 300991), (97, 201695), (107, 182845), (145, 134927), (377, 51895), (485, 40339), (535, 36569), (1261, 15515), (1391, 14065), (1885, 10379), (2813, 6955), (3103, 6305)]