278313880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{535219}}^1$

素因数の和:535243

約数の個数: 32

約数和(自身を含む): 674377200

約数和(自身を除く): 396063320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 535219, 1070438, 2140876, 2676095, 4281752, 5352190, 6957847, 10704380, 13915694, 21408760, 27831388, 34789235, 55662776, 69578470, 139156940, 278313880]

約数ペア:

[(1, 278313880), (2, 139156940), (4, 69578470), (5, 55662776), (8, 34789235), (10, 27831388), (13, 21408760), (20, 13915694), (26, 10704380), (40, 6957847), (52, 5352190), (65, 4281752), (104, 2676095), (130, 2140876), (260, 1070438), (520, 535219)]