1988654928

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{12697}}^1$

素因数の和:12972

約数の個数: 80

約数和(自身を含む): 5555019456

約数和(自身を除く): 3566364528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 251, 312, 502, 624, 753, 1004, 1506, 2008, 3012, 3263, 4016, 6024, 6526, 9789, 12048, 12697, 13052, 19578, 25394, 26104, 38091, 39156, 50788, 52208, 76182, 78312, 101576, 152364, 156624, 165061, 203152, 304728, 330122, 495183, 609456, 660244, 990366, 1320488, 1980732, 2640976, 3186947, 3961464, 6373894, 7922928, 9560841, 12747788, 19121682, 25495576, 38243364, 41430311, 50991152, 76486728, 82860622, 124290933, 152973456, 165721244, 248581866, 331442488, 497163732, 662884976, 994327464, 1988654928]

約数ペア:

[(1, 1988654928), (2, 994327464), (3, 662884976), (4, 497163732), (6, 331442488), (8, 248581866), (12, 165721244), (13, 152973456), (16, 124290933), (24, 82860622), (26, 76486728), (39, 50991152), (48, 41430311), (52, 38243364), (78, 25495576), (104, 19121682), (156, 12747788), (208, 9560841), (251, 7922928), (312, 6373894), (502, 3961464), (624, 3186947), (753, 2640976), (1004, 1980732), (1506, 1320488), (2008, 990366), (3012, 660244), (3263, 609456), (4016, 495183), (6024, 330122), (6526, 304728), (9789, 203152), (12048, 165061), (12697, 156624), (13052, 152364), (19578, 101576), (25394, 78312), (26104, 76182), (38091, 52208), (39156, 50788)]