15968820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 51625728

約数和(自身を除く): 35656908

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, 193, 197, 210, 386, 394, 420, 579, 591, 772, 788, 965, 985, 1158, 1182, 1351, 1379, 1930, 1970, 2316, 2364, 2702, 2758, 2895, 2955, 3860, 3940, 4053, 4137, 5404, 5516, 5790, 5910, 6755, 6895, 8106, 8274, 11580, 11820, 13510, 13790, 16212, 16548, 20265, 20685, 27020, 27580, 38021, 40530, 41370, 76042, 81060, 82740, 114063, 152084, 190105, 228126, 266147, 380210, 456252, 532294, 570315, 760420, 798441, 1064588, 1140630, 1330735, 1596882, 2281260, 2661470, 3193764, 3992205, 5322940, 7984410, 15968820]

約数ペア:

[(1, 15968820), (2, 7984410), (3, 5322940), (4, 3992205), (5, 3193764), (6, 2661470), (7, 2281260), (10, 1596882), (12, 1330735), (14, 1140630), (15, 1064588), (20, 798441), (21, 760420), (28, 570315), (30, 532294), (35, 456252), (42, 380210), (60, 266147), (70, 228126), (84, 190105), (105, 152084), (140, 114063), (193, 82740), (197, 81060), (210, 76042), (386, 41370), (394, 40530), (420, 38021), (579, 27580), (591, 27020), (772, 20685), (788, 20265), (965, 16548), (985, 16212), (1158, 13790), (1182, 13510), (1351, 11820), (1379, 11580), (1930, 8274), (1970, 8106), (2316, 6895), (2364, 6755), (2702, 5910), (2758, 5790), (2895, 5516), (2955, 5404), (3860, 4137), (3940, 4053)]