289409848

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397541}}^1$

素因数の和:397567

約数の個数: 32

約数和(自身を含む): 667870560

約数和(自身を除く): 378460712

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 397541, 795082, 1590164, 2782787, 3180328, 5168033, 5565574, 10336066, 11131148, 20672132, 22262296, 36176231, 41344264, 72352462, 144704924, 289409848]

約数ペア:

[(1, 289409848), (2, 144704924), (4, 72352462), (7, 41344264), (8, 36176231), (13, 22262296), (14, 20672132), (26, 11131148), (28, 10336066), (52, 5565574), (56, 5168033), (91, 3180328), (104, 2782787), (182, 1590164), (364, 795082), (728, 397541)]