20686260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49253}}^1$

素因数の和:49272

約数の個数: 48

約数和(自身を含む): 66197376

約数和(自身を除く): 45511116

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 49253, 98506, 147759, 197012, 246265, 295518, 344771, 492530, 591036, 689542, 738795, 985060, 1034313, 1379084, 1477590, 1723855, 2068626, 2955180, 3447710, 4137252, 5171565, 6895420, 10343130, 20686260]

約数ペア:

[(1, 20686260), (2, 10343130), (3, 6895420), (4, 5171565), (5, 4137252), (6, 3447710), (7, 2955180), (10, 2068626), (12, 1723855), (14, 1477590), (15, 1379084), (20, 1034313), (21, 985060), (28, 738795), (30, 689542), (35, 591036), (42, 492530), (60, 344771), (70, 295518), (84, 246265), (105, 197012), (140, 147759), (210, 98506), (420, 49253)]