20051080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3769}}^1$

素因数の和:3806

約数の個数: 64

約数和(自身を含む): 54288000

約数和(自身を除く): 34236920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3769, 5320, 7538, 15076, 18845, 26383, 30152, 37690, 52766, 71611, 75380, 105532, 131915, 143222, 150760, 211064, 263830, 286444, 358055, 501277, 527660, 572888, 716110, 1002554, 1055320, 1432220, 2005108, 2506385, 2864440, 4010216, 5012770, 10025540, 20051080]

約数ペア:

[(1, 20051080), (2, 10025540), (4, 5012770), (5, 4010216), (7, 2864440), (8, 2506385), (10, 2005108), (14, 1432220), (19, 1055320), (20, 1002554), (28, 716110), (35, 572888), (38, 527660), (40, 501277), (56, 358055), (70, 286444), (76, 263830), (95, 211064), (133, 150760), (140, 143222), (152, 131915), (190, 105532), (266, 75380), (280, 71611), (380, 52766), (532, 37690), (665, 30152), (760, 26383), (1064, 18845), (1330, 15076), (2660, 7538), (3769, 5320)]