638003716

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{461}}^1$

素因数の和:809

約数の個数: 72

約数和(自身を含む): 1362626496

約数和(自身を除く): 724622780

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 307, 322, 461, 614, 644, 922, 1127, 1228, 1844, 2149, 2254, 3227, 4298, 4508, 6454, 7061, 8596, 10603, 12908, 14122, 15043, 21206, 22589, 28244, 30086, 42412, 45178, 49427, 60172, 74221, 90356, 98854, 141527, 148442, 197708, 283054, 296884, 345989, 519547, 566108, 691978, 990689, 1039094, 1383956, 1981378, 2078188, 3255121, 3962756, 6510242, 6934823, 13020484, 13869646, 22785847, 27739292, 45571694, 91143388, 159500929, 319001858, 638003716]

約数ペア:

[(1, 638003716), (2, 319001858), (4, 159500929), (7, 91143388), (14, 45571694), (23, 27739292), (28, 22785847), (46, 13869646), (49, 13020484), (92, 6934823), (98, 6510242), (161, 3962756), (196, 3255121), (307, 2078188), (322, 1981378), (461, 1383956), (614, 1039094), (644, 990689), (922, 691978), (1127, 566108), (1228, 519547), (1844, 345989), (2149, 296884), (2254, 283054), (3227, 197708), (4298, 148442), (4508, 141527), (6454, 98854), (7061, 90356), (8596, 74221), (10603, 60172), (12908, 49427), (14122, 45178), (15043, 42412), (21206, 30086), (22589, 28244)]