257788648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{60457}}^1$

素因数の和:60517

約数の個数: 32

約数和(自身を含む): 533239560

約数和(自身を除く): 275450912

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 328, 533, 1066, 2132, 4264, 60457, 120914, 241828, 483656, 785941, 1571882, 2478737, 3143764, 4957474, 6287528, 9914948, 19829896, 32223581, 64447162, 128894324, 257788648]

約数ペア:

[(1, 257788648), (2, 128894324), (4, 64447162), (8, 32223581), (13, 19829896), (26, 9914948), (41, 6287528), (52, 4957474), (82, 3143764), (104, 2478737), (164, 1571882), (328, 785941), (533, 483656), (1066, 241828), (2132, 120914), (4264, 60457)]