18440955

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1087}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 35642880

約数和(自身を除く): 17201925

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 145, 195, 261, 377, 435, 585, 1087, 1131, 1305, 1885, 3261, 3393, 5435, 5655, 9783, 14131, 16305, 16965, 31523, 42393, 48915, 70655, 94569, 127179, 157615, 211965, 283707, 409799, 472845, 635895, 1229397, 1418535, 2048995, 3688191, 6146985, 18440955]

約数ペア:

[(1, 18440955), (3, 6146985), (5, 3688191), (9, 2048995), (13, 1418535), (15, 1229397), (29, 635895), (39, 472845), (45, 409799), (65, 283707), (87, 211965), (117, 157615), (145, 127179), (195, 94569), (261, 70655), (377, 48915), (435, 42393), (585, 31523), (1087, 16965), (1131, 16305), (1305, 14131), (1885, 9783), (3261, 5655), (3393, 5435)]