265805920

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^2$

素因数の和:372

約数の個数: 72

約数和(自身を含む): 639095184

約数和(自身を除く): 373289264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 127, 160, 206, 254, 412, 508, 515, 635, 824, 1016, 1030, 1270, 1648, 2032, 2060, 2540, 3296, 4064, 4120, 5080, 8240, 10160, 13081, 16129, 16480, 20320, 26162, 32258, 52324, 64516, 65405, 80645, 104648, 129032, 130810, 161290, 209296, 258064, 261620, 322580, 418592, 516128, 523240, 645160, 1046480, 1290320, 1661287, 2092960, 2580640, 3322574, 6645148, 8306435, 13290296, 16612870, 26580592, 33225740, 53161184, 66451480, 132902960, 265805920]

約数ペア:

[(1, 265805920), (2, 132902960), (4, 66451480), (5, 53161184), (8, 33225740), (10, 26580592), (16, 16612870), (20, 13290296), (32, 8306435), (40, 6645148), (80, 3322574), (103, 2580640), (127, 2092960), (160, 1661287), (206, 1290320), (254, 1046480), (412, 645160), (508, 523240), (515, 516128), (635, 418592), (824, 322580), (1016, 261620), (1030, 258064), (1270, 209296), (1648, 161290), (2032, 130810), (2060, 129032), (2540, 104648), (3296, 80645), (4064, 65405), (4120, 64516), (5080, 52324), (8240, 32258), (10160, 26162), (13081, 20320), (16129, 16480)]