127998416

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{87911}}^1$

素因数の和:87939

約数の個数: 40

約数和(自身を含む): 305230464

約数和(自身を除く): 177232048

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 87911, 175822, 351644, 615377, 703288, 1142843, 1230754, 1406576, 2285686, 2461508, 4571372, 4923016, 7999901, 9142744, 9846032, 15999802, 18285488, 31999604, 63999208, 127998416]

約数ペア:

[(1, 127998416), (2, 63999208), (4, 31999604), (7, 18285488), (8, 15999802), (13, 9846032), (14, 9142744), (16, 7999901), (26, 4923016), (28, 4571372), (52, 2461508), (56, 2285686), (91, 1406576), (104, 1230754), (112, 1142843), (182, 703288), (208, 615377), (364, 351644), (728, 175822), (1456, 87911)]