38989520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:372

約数の個数: 80

約数和(自身を含む): 96690240

約数和(自身を除く): 57700720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 113, 152, 190, 226, 227, 304, 380, 452, 454, 565, 760, 904, 908, 1130, 1135, 1520, 1808, 1816, 2147, 2260, 2270, 3632, 4294, 4313, 4520, 4540, 8588, 8626, 9040, 9080, 10735, 17176, 17252, 18160, 21470, 21565, 25651, 34352, 34504, 42940, 43130, 51302, 69008, 85880, 86260, 102604, 128255, 171760, 172520, 205208, 256510, 345040, 410416, 487369, 513020, 974738, 1026040, 1949476, 2052080, 2436845, 3898952, 4873690, 7797904, 9747380, 19494760, 38989520]

約数ペア:

[(1, 38989520), (2, 19494760), (4, 9747380), (5, 7797904), (8, 4873690), (10, 3898952), (16, 2436845), (19, 2052080), (20, 1949476), (38, 1026040), (40, 974738), (76, 513020), (80, 487369), (95, 410416), (113, 345040), (152, 256510), (190, 205208), (226, 172520), (227, 171760), (304, 128255), (380, 102604), (452, 86260), (454, 85880), (565, 69008), (760, 51302), (904, 43130), (908, 42940), (1130, 34504), (1135, 34352), (1520, 25651), (1808, 21565), (1816, 21470), (2147, 18160), (2260, 17252), (2270, 17176), (3632, 10735), (4294, 9080), (4313, 9040), (4520, 8626), (4540, 8588)]