20357360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 30532240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 227, 236, 295, 304, 380, 454, 472, 590, 760, 908, 944, 1121, 1135, 1180, 1520, 1816, 2242, 2270, 2360, 3632, 4313, 4484, 4540, 4720, 5605, 8626, 8968, 9080, 11210, 13393, 17252, 17936, 18160, 21565, 22420, 26786, 34504, 43130, 44840, 53572, 66965, 69008, 86260, 89680, 107144, 133930, 172520, 214288, 254467, 267860, 345040, 508934, 535720, 1017868, 1071440, 1272335, 2035736, 2544670, 4071472, 5089340, 10178680, 20357360]

約数ペア:

[(1, 20357360), (2, 10178680), (4, 5089340), (5, 4071472), (8, 2544670), (10, 2035736), (16, 1272335), (19, 1071440), (20, 1017868), (38, 535720), (40, 508934), (59, 345040), (76, 267860), (80, 254467), (95, 214288), (118, 172520), (152, 133930), (190, 107144), (227, 89680), (236, 86260), (295, 69008), (304, 66965), (380, 53572), (454, 44840), (472, 43130), (590, 34504), (760, 26786), (908, 22420), (944, 21565), (1121, 18160), (1135, 17936), (1180, 17252), (1520, 13393), (1816, 11210), (2242, 9080), (2270, 8968), (2360, 8626), (3632, 5605), (4313, 4720), (4484, 4540)]