20417460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{281}}^1$

素因数の和:473

約数の個数: 96

約数和(自身を含む): 65947392

約数和(自身を除く): 45529932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 173, 210, 281, 346, 420, 519, 562, 692, 843, 865, 1038, 1124, 1211, 1405, 1686, 1730, 1967, 2076, 2422, 2595, 2810, 3372, 3460, 3633, 3934, 4215, 4844, 5190, 5620, 5901, 6055, 7266, 7868, 8430, 9835, 10380, 11802, 12110, 14532, 16860, 18165, 19670, 23604, 24220, 29505, 36330, 39340, 48613, 59010, 72660, 97226, 118020, 145839, 194452, 243065, 291678, 340291, 486130, 583356, 680582, 729195, 972260, 1020873, 1361164, 1458390, 1701455, 2041746, 2916780, 3402910, 4083492, 5104365, 6805820, 10208730, 20417460]

約数ペア:

[(1, 20417460), (2, 10208730), (3, 6805820), (4, 5104365), (5, 4083492), (6, 3402910), (7, 2916780), (10, 2041746), (12, 1701455), (14, 1458390), (15, 1361164), (20, 1020873), (21, 972260), (28, 729195), (30, 680582), (35, 583356), (42, 486130), (60, 340291), (70, 291678), (84, 243065), (105, 194452), (140, 145839), (173, 118020), (210, 97226), (281, 72660), (346, 59010), (420, 48613), (519, 39340), (562, 36330), (692, 29505), (843, 24220), (865, 23604), (1038, 19670), (1124, 18165), (1211, 16860), (1405, 14532), (1686, 12110), (1730, 11802), (1967, 10380), (2076, 9835), (2422, 8430), (2595, 7868), (2810, 7266), (3372, 6055), (3460, 5901), (3633, 5620), (3934, 5190), (4215, 4844)]