254697560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{489803}}^1$

素因数の和:489827

約数の個数: 32

約数和(自身を含む): 617153040

約数和(自身を除く): 362455480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 489803, 979606, 1959212, 2449015, 3918424, 4898030, 6367439, 9796060, 12734878, 19592120, 25469756, 31837195, 50939512, 63674390, 127348780, 254697560]

約数ペア:

[(1, 254697560), (2, 127348780), (4, 63674390), (5, 50939512), (8, 31837195), (10, 25469756), (13, 19592120), (20, 12734878), (26, 9796060), (40, 6367439), (52, 4898030), (65, 3918424), (104, 2449015), (130, 1959212), (260, 979606), (520, 489803)]