28941275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 42854400

約数和(自身を除く): 13913125

約数列:

[1, 5, 11, 19, 25, 29, 55, 95, 145, 191, 209, 275, 319, 475, 551, 725, 955, 1045, 1595, 2101, 2755, 3629, 4775, 5225, 5539, 6061, 7975, 10505, 13775, 18145, 27695, 30305, 39919, 52525, 60929, 90725, 105241, 138475, 151525, 199595, 304645, 526205, 997975, 1157651, 1523225, 2631025, 5788255, 28941275]

約数ペア:

[(1, 28941275), (5, 5788255), (11, 2631025), (19, 1523225), (25, 1157651), (29, 997975), (55, 526205), (95, 304645), (145, 199595), (191, 151525), (209, 138475), (275, 105241), (319, 90725), (475, 60929), (551, 52525), (725, 39919), (955, 30305), (1045, 27695), (1595, 18145), (2101, 13775), (2755, 10505), (3629, 7975), (4775, 6061), (5225, 5539)]