18838300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:407

約数の個数: 72

約数和(自身を含む): 45181136

約数和(自身を除く): 26342836

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 337, 430, 559, 650, 674, 860, 1075, 1118, 1300, 1348, 1685, 2150, 2236, 2795, 3370, 4300, 4381, 5590, 6740, 8425, 8762, 11180, 13975, 14491, 16850, 17524, 21905, 27950, 28982, 33700, 43810, 55900, 57964, 72455, 87620, 109525, 144910, 188383, 219050, 289820, 362275, 376766, 438100, 724550, 753532, 941915, 1449100, 1883830, 3767660, 4709575, 9419150, 18838300]

約数ペア:

[(1, 18838300), (2, 9419150), (4, 4709575), (5, 3767660), (10, 1883830), (13, 1449100), (20, 941915), (25, 753532), (26, 724550), (43, 438100), (50, 376766), (52, 362275), (65, 289820), (86, 219050), (100, 188383), (130, 144910), (172, 109525), (215, 87620), (260, 72455), (325, 57964), (337, 55900), (430, 43810), (559, 33700), (650, 28982), (674, 27950), (860, 21905), (1075, 17524), (1118, 16850), (1300, 14491), (1348, 13975), (1685, 11180), (2150, 8762), (2236, 8425), (2795, 6740), (3370, 5590), (4300, 4381)]