1285388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1301}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 2551920

約数和(自身を除く): 1266532

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 1301, 2602, 5204, 16913, 24719, 33826, 49438, 67652, 98876, 321347, 642694, 1285388]

約数ペア:

[(1, 1285388), (2, 642694), (4, 321347), (13, 98876), (19, 67652), (26, 49438), (38, 33826), (52, 24719), (76, 16913), (247, 5204), (494, 2602), (988, 1301)]