551720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1061}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 1338120

約数和(自身を除く): 786400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1061, 2122, 4244, 5305, 8488, 10610, 13793, 21220, 27586, 42440, 55172, 68965, 110344, 137930, 275860, 551720]

約数ペア:

[(1, 551720), (2, 275860), (4, 137930), (5, 110344), (8, 68965), (10, 55172), (13, 42440), (20, 27586), (26, 21220), (40, 13793), (52, 10610), (65, 8488), (104, 5305), (130, 4244), (260, 2122), (520, 1061)]