20372275

素因数分解:

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

素因数の和:604

約数の個数: 48

約数和(自身を含む): 33212160

約数和(自身を除く): 12839885

約数列:

[1, 5, 7, 11, 19, 25, 35, 55, 77, 95, 133, 175, 209, 275, 385, 475, 557, 665, 1045, 1463, 1925, 2785, 3325, 3899, 5225, 6127, 7315, 10583, 13925, 19495, 30635, 36575, 42889, 52915, 74081, 97475, 116413, 153175, 214445, 264575, 370405, 582065, 814891, 1072225, 1852025, 2910325, 4074455, 20372275]

約数ペア:

[(1, 20372275), (5, 4074455), (7, 2910325), (11, 1852025), (19, 1072225), (25, 814891), (35, 582065), (55, 370405), (77, 264575), (95, 214445), (133, 153175), (175, 116413), (209, 97475), (275, 74081), (385, 52915), (475, 42889), (557, 36575), (665, 30635), (1045, 19495), (1463, 13925), (1925, 10583), (2785, 7315), (3325, 6127), (3899, 5225)]