16011990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2101

約数の個数: 48

約数和(自身を含む): 42120000

約数和(自身を除く): 26108010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 1999, 2670, 3998, 4005, 5997, 8010, 9995, 11994, 17991, 19990, 29985, 35982, 59970, 89955, 177911, 179910, 355822, 533733, 889555, 1067466, 1601199, 1779110, 2668665, 3202398, 5337330, 8005995, 16011990]

約数ペア:

[(1, 16011990), (2, 8005995), (3, 5337330), (5, 3202398), (6, 2668665), (9, 1779110), (10, 1601199), (15, 1067466), (18, 889555), (30, 533733), (45, 355822), (89, 179910), (90, 177911), (178, 89955), (267, 59970), (445, 35982), (534, 29985), (801, 19990), (890, 17991), (1335, 11994), (1602, 9995), (1999, 8010), (2670, 5997), (3998, 4005)]