2845180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 6660864

約数和(自身を除く): 3815684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 353, 403, 620, 706, 806, 1412, 1612, 1765, 2015, 3530, 4030, 4589, 7060, 8060, 9178, 10943, 18356, 21886, 22945, 43772, 45890, 54715, 91780, 109430, 142259, 218860, 284518, 569036, 711295, 1422590, 2845180]

約数ペア:

[(1, 2845180), (2, 1422590), (4, 711295), (5, 569036), (10, 284518), (13, 218860), (20, 142259), (26, 109430), (31, 91780), (52, 54715), (62, 45890), (65, 43772), (124, 22945), (130, 21886), (155, 18356), (260, 10943), (310, 9178), (353, 8060), (403, 7060), (620, 4589), (706, 4030), (806, 3530), (1412, 2015), (1612, 1765)]