19965270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51193}}^1$

素因数の和:51216

約数の個数: 32

約数和(自身を含む): 51603552

約数和(自身を除く): 31638282

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51193, 102386, 153579, 255965, 307158, 511930, 665509, 767895, 1331018, 1535790, 1996527, 3327545, 3993054, 6655090, 9982635, 19965270]

約数ペア:

[(1, 19965270), (2, 9982635), (3, 6655090), (5, 3993054), (6, 3327545), (10, 1996527), (13, 1535790), (15, 1331018), (26, 767895), (30, 665509), (39, 511930), (65, 307158), (78, 255965), (130, 153579), (195, 102386), (390, 51193)]