78485420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{301867}}^1$

素因数の和:301889

約数の個数: 24

約数和(自身を含む): 177498384

約数和(自身を除く): 99012964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 301867, 603734, 1207468, 1509335, 3018670, 3924271, 6037340, 7848542, 15697084, 19621355, 39242710, 78485420]

約数ペア:

[(1, 78485420), (2, 39242710), (4, 19621355), (5, 15697084), (10, 7848542), (13, 6037340), (20, 3924271), (26, 3018670), (52, 1509335), (65, 1207468), (130, 603734), (260, 301867)]