200919980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103567}}^1$

素因数の和:103673

約数の個数: 24

約数和(自身を含む): 426285888

約数和(自身を除く): 225365908

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 103567, 207134, 414268, 517835, 1035670, 2071340, 10045999, 20091998, 40183996, 50229995, 100459990, 200919980]

約数ペア:

[(1, 200919980), (2, 100459990), (4, 50229995), (5, 40183996), (10, 20091998), (20, 10045999), (97, 2071340), (194, 1035670), (388, 517835), (485, 414268), (970, 207134), (1940, 103567)]