128941340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1433}}^1$

素因数の和:1862

約数の個数: 48

約数和(自身を含む): 296321760

約数和(自身を除く): 167380420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 409, 818, 1433, 1636, 2045, 2866, 4090, 4499, 5732, 7165, 8180, 8998, 14330, 15763, 17996, 22495, 28660, 31526, 44990, 63052, 78815, 89980, 157630, 315260, 586097, 1172194, 2344388, 2930485, 5860970, 6447067, 11721940, 12894134, 25788268, 32235335, 64470670, 128941340]

約数ペア:

[(1, 128941340), (2, 64470670), (4, 32235335), (5, 25788268), (10, 12894134), (11, 11721940), (20, 6447067), (22, 5860970), (44, 2930485), (55, 2344388), (110, 1172194), (220, 586097), (409, 315260), (818, 157630), (1433, 89980), (1636, 78815), (2045, 63052), (2866, 44990), (4090, 31526), (4499, 28660), (5732, 22495), (7165, 17996), (8180, 15763), (8998, 14330)]