16206740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 38632776

約数和(自身を除く): 22426036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 181, 185, 220, 242, 362, 370, 407, 484, 605, 724, 740, 814, 905, 1210, 1628, 1810, 1991, 2035, 2420, 3620, 3982, 4070, 4477, 6697, 7964, 8140, 8954, 9955, 13394, 17908, 19910, 21901, 22385, 26788, 33485, 39820, 43802, 44770, 66970, 73667, 87604, 89540, 109505, 133940, 147334, 219010, 294668, 368335, 438020, 736670, 810337, 1473340, 1620674, 3241348, 4051685, 8103370, 16206740]

約数ペア:

[(1, 16206740), (2, 8103370), (4, 4051685), (5, 3241348), (10, 1620674), (11, 1473340), (20, 810337), (22, 736670), (37, 438020), (44, 368335), (55, 294668), (74, 219010), (110, 147334), (121, 133940), (148, 109505), (181, 89540), (185, 87604), (220, 73667), (242, 66970), (362, 44770), (370, 43802), (407, 39820), (484, 33485), (605, 26788), (724, 22385), (740, 21901), (814, 19910), (905, 17908), (1210, 13394), (1628, 9955), (1810, 8954), (1991, 8140), (2035, 7964), (2420, 6697), (3620, 4477), (3982, 4070)]