1381264

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:798

約数の個数: 20

約数和(自身を含む): 2700720

約数和(自身を除く): 1319456

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 659, 1048, 1318, 2096, 2636, 5272, 10544, 86329, 172658, 345316, 690632, 1381264]

約数ペア:

[(1, 1381264), (2, 690632), (4, 345316), (8, 172658), (16, 86329), (131, 10544), (262, 5272), (524, 2636), (659, 2096), (1048, 1318)]