45000020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10181}}^1$

素因数の和:10220

約数の個数: 48

約数和(自身を含む): 107766288

約数和(自身を除く): 62766268

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 10181, 20362, 40724, 50905, 101810, 132353, 173077, 203620, 264706, 346154, 529412, 661765, 692308, 865385, 1323530, 1730770, 2250001, 2647060, 3461540, 4500002, 9000004, 11250005, 22500010, 45000020]

約数ペア:

[(1, 45000020), (2, 22500010), (4, 11250005), (5, 9000004), (10, 4500002), (13, 3461540), (17, 2647060), (20, 2250001), (26, 1730770), (34, 1323530), (52, 865385), (65, 692308), (68, 661765), (85, 529412), (130, 346154), (170, 264706), (221, 203620), (260, 173077), (340, 132353), (442, 101810), (884, 50905), (1105, 40724), (2210, 20362), (4420, 10181)]