128581020

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{8819}}^1$

素因数の和:8846

約数の個数: 84

約数和(自身を含む): 404890920

約数和(自身を除く): 276309900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1620, 2430, 2916, 3645, 4860, 7290, 8819, 14580, 17638, 26457, 35276, 44095, 52914, 79371, 88190, 105828, 132285, 158742, 176380, 238113, 264570, 317484, 396855, 476226, 529140, 714339, 793710, 952452, 1190565, 1428678, 1587420, 2143017, 2381130, 2857356, 3571695, 4286034, 4762260, 6429051, 7143390, 8572068, 10715085, 12858102, 14286780, 21430170, 25716204, 32145255, 42860340, 64290510, 128581020]

約数ペア:

[(1, 128581020), (2, 64290510), (3, 42860340), (4, 32145255), (5, 25716204), (6, 21430170), (9, 14286780), (10, 12858102), (12, 10715085), (15, 8572068), (18, 7143390), (20, 6429051), (27, 4762260), (30, 4286034), (36, 3571695), (45, 2857356), (54, 2381130), (60, 2143017), (81, 1587420), (90, 1428678), (108, 1190565), (135, 952452), (162, 793710), (180, 714339), (243, 529140), (270, 476226), (324, 396855), (405, 317484), (486, 264570), (540, 238113), (729, 176380), (810, 158742), (972, 132285), (1215, 105828), (1458, 88190), (1620, 79371), (2430, 52914), (2916, 44095), (3645, 35276), (4860, 26457), (7290, 17638), (8819, 14580)]