78340720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1019}}^1$

素因数の和:1094

約数の個数: 60

約数和(自身を含む): 188391960

約数和(自身を除く): 110051240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1019, 1240, 1922, 2038, 2480, 3844, 4076, 4805, 5095, 7688, 8152, 9610, 10190, 15376, 16304, 19220, 20380, 31589, 38440, 40760, 63178, 76880, 81520, 126356, 157945, 252712, 315890, 505424, 631780, 979259, 1263560, 1958518, 2527120, 3917036, 4896295, 7834072, 9792590, 15668144, 19585180, 39170360, 78340720]

約数ペア:

[(1, 78340720), (2, 39170360), (4, 19585180), (5, 15668144), (8, 9792590), (10, 7834072), (16, 4896295), (20, 3917036), (31, 2527120), (40, 1958518), (62, 1263560), (80, 979259), (124, 631780), (155, 505424), (248, 315890), (310, 252712), (496, 157945), (620, 126356), (961, 81520), (1019, 76880), (1240, 63178), (1922, 40760), (2038, 38440), (2480, 31589), (3844, 20380), (4076, 19220), (4805, 16304), (5095, 15376), (7688, 10190), (8152, 9610)]