19454540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{1759}}^1$

素因数の和:1854

約数の個数: 48

約数和(自身を含む): 47308800

約数和(自身を除く): 27854260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 1759, 2212, 2765, 3518, 5530, 7036, 8795, 11060, 12313, 17590, 24626, 35180, 49252, 61565, 123130, 138961, 246260, 277922, 555844, 694805, 972727, 1389610, 1945454, 2779220, 3890908, 4863635, 9727270, 19454540]

約数ペア:

[(1, 19454540), (2, 9727270), (4, 4863635), (5, 3890908), (7, 2779220), (10, 1945454), (14, 1389610), (20, 972727), (28, 694805), (35, 555844), (70, 277922), (79, 246260), (140, 138961), (158, 123130), (316, 61565), (395, 49252), (553, 35180), (790, 24626), (1106, 17590), (1580, 12313), (1759, 11060), (2212, 8795), (2765, 7036), (3518, 5530)]