278320172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{100987}}^1$

素因数の和:101057

約数の個数: 24

約数和(自身を含む): 534428496

約数和(自身を除く): 256108324

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 100987, 201974, 403948, 1312831, 2625662, 5251324, 5352311, 10704622, 21409244, 69580043, 139160086, 278320172]

約数ペア:

[(1, 278320172), (2, 139160086), (4, 69580043), (13, 21409244), (26, 10704622), (52, 5352311), (53, 5251324), (106, 2625662), (212, 1312831), (689, 403948), (1378, 201974), (2756, 100987)]