28289140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{863}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 65318400

約数和(自身を除く): 37029260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 863, 1490, 1639, 1726, 2980, 3278, 3452, 4315, 6556, 8195, 8630, 9493, 16390, 17260, 18986, 32780, 37972, 47465, 94930, 128587, 189860, 257174, 514348, 642935, 1285870, 1414457, 2571740, 2828914, 5657828, 7072285, 14144570, 28289140]

約数ペア:

[(1, 28289140), (2, 14144570), (4, 7072285), (5, 5657828), (10, 2828914), (11, 2571740), (20, 1414457), (22, 1285870), (44, 642935), (55, 514348), (110, 257174), (149, 189860), (220, 128587), (298, 94930), (596, 47465), (745, 37972), (863, 32780), (1490, 18986), (1639, 17260), (1726, 16390), (2980, 9493), (3278, 8630), (3452, 8195), (4315, 6556)]