128940532

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{148549}}^1$

素因数の和:148591

約数の個数: 24

約数和(自身を含む): 266201600

約数和(自身を除く): 137261068

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 148549, 297098, 594196, 1039843, 2079686, 4159372, 4605019, 9210038, 18420076, 32235133, 64470266, 128940532]

約数ペア:

[(1, 128940532), (2, 64470266), (4, 32235133), (7, 18420076), (14, 9210038), (28, 4605019), (31, 4159372), (62, 2079686), (124, 1039843), (217, 594196), (434, 297098), (868, 148549)]