42553540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1132

約数の個数: 48

約数和(自身を含む): 94993920

約数和(自身を除く): 52440380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 380, 452, 565, 991, 1130, 1982, 2147, 2260, 3964, 4294, 4955, 8588, 9910, 10735, 18829, 19820, 21470, 37658, 42940, 75316, 94145, 111983, 188290, 223966, 376580, 447932, 559915, 1119830, 2127677, 2239660, 4255354, 8510708, 10638385, 21276770, 42553540]

約数ペア:

[(1, 42553540), (2, 21276770), (4, 10638385), (5, 8510708), (10, 4255354), (19, 2239660), (20, 2127677), (38, 1119830), (76, 559915), (95, 447932), (113, 376580), (190, 223966), (226, 188290), (380, 111983), (452, 94145), (565, 75316), (991, 42940), (1130, 37658), (1982, 21470), (2147, 19820), (2260, 18829), (3964, 10735), (4294, 9910), (4955, 8588)]