87881780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{8599}}^1$

素因数の和:8688

約数の個数: 48

約数和(自身を含む): 213830400

約数和(自身を除く): 125948620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 8599, 10220, 17198, 34396, 42995, 60193, 85990, 120386, 171980, 240772, 300965, 601930, 627727, 1203860, 1255454, 2510908, 3138635, 4394089, 6277270, 8788178, 12554540, 17576356, 21970445, 43940890, 87881780]

約数ペア:

[(1, 87881780), (2, 43940890), (4, 21970445), (5, 17576356), (7, 12554540), (10, 8788178), (14, 6277270), (20, 4394089), (28, 3138635), (35, 2510908), (70, 1255454), (73, 1203860), (140, 627727), (146, 601930), (292, 300965), (365, 240772), (511, 171980), (730, 120386), (1022, 85990), (1460, 60193), (2044, 42995), (2555, 34396), (5110, 17198), (8599, 10220)]