28345815

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 64

約数和(自身を含む): 54489600

約数和(自身を除く): 26143785

約数列:

[1, 3, 5, 9, 15, 19, 27, 43, 45, 57, 95, 129, 135, 171, 215, 257, 285, 387, 513, 645, 771, 817, 855, 1161, 1285, 1935, 2313, 2451, 2565, 3855, 4085, 4883, 5805, 6939, 7353, 11051, 11565, 12255, 14649, 22059, 24415, 33153, 34695, 36765, 43947, 55255, 73245, 99459, 110295, 131841, 165765, 209969, 219735, 298377, 497295, 629907, 659205, 1049845, 1491885, 1889721, 3149535, 5669163, 9448605, 28345815]

約数ペア:

[(1, 28345815), (3, 9448605), (5, 5669163), (9, 3149535), (15, 1889721), (19, 1491885), (27, 1049845), (43, 659205), (45, 629907), (57, 497295), (95, 298377), (129, 219735), (135, 209969), (171, 165765), (215, 131841), (257, 110295), (285, 99459), (387, 73245), (513, 55255), (645, 43947), (771, 36765), (817, 34695), (855, 33153), (1161, 24415), (1285, 22059), (1935, 14649), (2313, 12255), (2451, 11565), (2565, 11051), (3855, 7353), (4085, 6939), (4883, 5805)]