128923720

素因数分解:

$2^3\times 5^1\times {\mathrm{373}}^1\times {\mathrm{8641}}^1$

素因数の和:9025

約数の個数: 32

約数和(自身を含む): 290889720

約数和(自身を除く): 161966000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 373, 746, 1492, 1865, 2984, 3730, 7460, 8641, 14920, 17282, 34564, 43205, 69128, 86410, 172820, 345640, 3223093, 6446186, 12892372, 16115465, 25784744, 32230930, 64461860, 128923720]

約数ペア:

[(1, 128923720), (2, 64461860), (4, 32230930), (5, 25784744), (8, 16115465), (10, 12892372), (20, 6446186), (40, 3223093), (373, 345640), (746, 172820), (1492, 86410), (1865, 69128), (2984, 43205), (3730, 34564), (7460, 17282), (8641, 14920)]