19259720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4261}}^1$

素因数の和:4385

約数の個数: 32

約数和(自身を含む): 43728120

約数和(自身を除く): 24468400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4261, 4520, 8522, 17044, 21305, 34088, 42610, 85220, 170440, 481493, 962986, 1925972, 2407465, 3851944, 4814930, 9629860, 19259720]

約数ペア:

[(1, 19259720), (2, 9629860), (4, 4814930), (5, 3851944), (8, 2407465), (10, 1925972), (20, 962986), (40, 481493), (113, 170440), (226, 85220), (452, 42610), (565, 34088), (904, 21305), (1130, 17044), (2260, 8522), (4261, 4520)]