256993100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:976

約数の個数: 144

約数和(自身を含む): 709287936

約数和(自身を除く): 452294836

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 31, 35, 50, 52, 62, 65, 70, 91, 100, 124, 130, 140, 155, 175, 182, 217, 260, 310, 325, 350, 364, 403, 434, 455, 620, 650, 700, 775, 806, 868, 910, 911, 1085, 1300, 1550, 1612, 1820, 1822, 2015, 2170, 2275, 2821, 3100, 3644, 4030, 4340, 4550, 4555, 5425, 5642, 6377, 8060, 9100, 9110, 10075, 10850, 11284, 11843, 12754, 14105, 18220, 20150, 21700, 22775, 23686, 25508, 28210, 28241, 31885, 40300, 45550, 47372, 56420, 56482, 59215, 63770, 70525, 82901, 91100, 112964, 118430, 127540, 141050, 141205, 159425, 165802, 197687, 236860, 282100, 282410, 296075, 318850, 331604, 367133, 395374, 414505, 564820, 592150, 637700, 706025, 734266, 790748, 829010, 988435, 1184300, 1412050, 1468532, 1658020, 1835665, 1976870, 2072525, 2569931, 2824100, 3671330, 3953740, 4145050, 4942175, 5139862, 7342660, 8290100, 9178325, 9884350, 10279724, 12849655, 18356650, 19768700, 25699310, 36713300, 51398620, 64248275, 128496550, 256993100]

約数ペア:

[(1, 256993100), (2, 128496550), (4, 64248275), (5, 51398620), (7, 36713300), (10, 25699310), (13, 19768700), (14, 18356650), (20, 12849655), (25, 10279724), (26, 9884350), (28, 9178325), (31, 8290100), (35, 7342660), (50, 5139862), (52, 4942175), (62, 4145050), (65, 3953740), (70, 3671330), (91, 2824100), (100, 2569931), (124, 2072525), (130, 1976870), (140, 1835665), (155, 1658020), (175, 1468532), (182, 1412050), (217, 1184300), (260, 988435), (310, 829010), (325, 790748), (350, 734266), (364, 706025), (403, 637700), (434, 592150), (455, 564820), (620, 414505), (650, 395374), (700, 367133), (775, 331604), (806, 318850), (868, 296075), (910, 282410), (911, 282100), (1085, 236860), (1300, 197687), (1550, 165802), (1612, 159425), (1820, 141205), (1822, 141050), (2015, 127540), (2170, 118430), (2275, 112964), (2821, 91100), (3100, 82901), (3644, 70525), (4030, 63770), (4340, 59215), (4550, 56482), (4555, 56420), (5425, 47372), (5642, 45550), (6377, 40300), (8060, 31885), (9100, 28241), (9110, 28210), (10075, 25508), (10850, 23686), (11284, 22775), (11843, 21700), (12754, 20150), (14105, 18220)]