20120690849

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 23721984000

約数和(自身を除く): 3601293151

約数列:

[1, 7, 43, 239, 301, 389, 719, 1673, 2723, 5033, 10277, 16727, 30917, 71939, 92971, 117089, 171841, 216419, 279691, 650797, 1202887, 1957837, 3997753, 7389163, 12026713, 27984271, 51724141, 66846149, 84186991, 467923043, 2874384407, 20120690849]

約数ペア:

[(1, 20120690849), (7, 2874384407), (43, 467923043), (239, 84186991), (301, 66846149), (389, 51724141), (719, 27984271), (1673, 12026713), (2723, 7389163), (5033, 3997753), (10277, 1957837), (16727, 1202887), (30917, 650797), (71939, 279691), (92971, 216419), (117089, 171841)]