28270005

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 47917440

約数和(自身を除く): 19647435

約数列:

[1, 3, 5, 15, 19, 57, 95, 281, 285, 353, 843, 1059, 1405, 1765, 4215, 5295, 5339, 6707, 16017, 20121, 26695, 33535, 80085, 99193, 100605, 297579, 495965, 1487895, 1884667, 5654001, 9423335, 28270005]

約数ペア:

[(1, 28270005), (3, 9423335), (5, 5654001), (15, 1884667), (19, 1487895), (57, 495965), (95, 297579), (281, 100605), (285, 99193), (353, 80085), (843, 33535), (1059, 26695), (1405, 20121), (1765, 16017), (4215, 6707), (5295, 5339)]