20271990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39749}}^1$

素因数の和:39776

約数の個数: 32

約数和(自身を含む): 51516000

約数和(自身を除く): 31244010

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 39749, 79498, 119247, 198745, 238494, 397490, 596235, 675733, 1192470, 1351466, 2027199, 3378665, 4054398, 6757330, 10135995, 20271990]

約数ペア:

[(1, 20271990), (2, 10135995), (3, 6757330), (5, 4054398), (6, 3378665), (10, 2027199), (15, 1351466), (17, 1192470), (30, 675733), (34, 596235), (51, 397490), (85, 238494), (102, 198745), (170, 119247), (255, 79498), (510, 39749)]