28521185

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 45800640

約数和(自身を除く): 17279455

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 133, 209, 245, 385, 539, 557, 665, 931, 1045, 1463, 2695, 2785, 3899, 4655, 6127, 7315, 10241, 10583, 19495, 27293, 30635, 42889, 51205, 52915, 74081, 116413, 136465, 214445, 300223, 370405, 518567, 582065, 814891, 1501115, 2592835, 4074455, 5704237, 28521185]

約数ペア:

[(1, 28521185), (5, 5704237), (7, 4074455), (11, 2592835), (19, 1501115), (35, 814891), (49, 582065), (55, 518567), (77, 370405), (95, 300223), (133, 214445), (209, 136465), (245, 116413), (385, 74081), (539, 52915), (557, 51205), (665, 42889), (931, 30635), (1045, 27293), (1463, 19495), (2695, 10583), (2785, 10241), (3899, 7315), (4655, 6127)]