28724675

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 43925760

約数和(自身を除く): 15201085

約数列:

[1, 5, 7, 19, 25, 35, 53, 95, 133, 163, 175, 265, 371, 475, 665, 815, 1007, 1141, 1325, 1855, 3097, 3325, 4075, 5035, 5705, 7049, 8639, 9275, 15485, 21679, 25175, 28525, 35245, 43195, 60473, 77425, 108395, 164141, 176225, 215975, 302365, 541975, 820705, 1148987, 1511825, 4103525, 5744935, 28724675]

約数ペア:

[(1, 28724675), (5, 5744935), (7, 4103525), (19, 1511825), (25, 1148987), (35, 820705), (53, 541975), (95, 302365), (133, 215975), (163, 176225), (175, 164141), (265, 108395), (371, 77425), (475, 60473), (665, 43195), (815, 35245), (1007, 28525), (1141, 25175), (1325, 21679), (1855, 15485), (3097, 9275), (3325, 8639), (4075, 7049), (5035, 5705)]