81330360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{21863}}^1$

素因数の和:21908

約数の個数: 64

約数和(自身を含む): 251873280

約数和(自身を除く): 170542920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 21863, 43726, 65589, 87452, 109315, 131178, 174904, 218630, 262356, 327945, 437260, 524712, 655890, 677753, 874520, 1311780, 1355506, 2033259, 2623560, 2711012, 3388765, 4066518, 5422024, 6777530, 8133036, 10166295, 13555060, 16266072, 20332590, 27110120, 40665180, 81330360]

約数ペア:

[(1, 81330360), (2, 40665180), (3, 27110120), (4, 20332590), (5, 16266072), (6, 13555060), (8, 10166295), (10, 8133036), (12, 6777530), (15, 5422024), (20, 4066518), (24, 3388765), (30, 2711012), (31, 2623560), (40, 2033259), (60, 1355506), (62, 1311780), (93, 874520), (120, 677753), (124, 655890), (155, 524712), (186, 437260), (248, 327945), (310, 262356), (372, 218630), (465, 174904), (620, 131178), (744, 109315), (930, 87452), (1240, 65589), (1860, 43726), (3720, 21863)]