30873640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1553}}^1$

素因数の和:1642

約数の個数: 64

約数和(自身を含む): 80559360

約数和(自身を除く): 49685720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1553, 1988, 2485, 2840, 3106, 3976, 4970, 6212, 7765, 9940, 10871, 12424, 15530, 19880, 21742, 31060, 43484, 54355, 62120, 86968, 108710, 110263, 217420, 220526, 434840, 441052, 551315, 771841, 882104, 1102630, 1543682, 2205260, 3087364, 3859205, 4410520, 6174728, 7718410, 15436820, 30873640]

約数ペア:

[(1, 30873640), (2, 15436820), (4, 7718410), (5, 6174728), (7, 4410520), (8, 3859205), (10, 3087364), (14, 2205260), (20, 1543682), (28, 1102630), (35, 882104), (40, 771841), (56, 551315), (70, 441052), (71, 434840), (140, 220526), (142, 217420), (280, 110263), (284, 108710), (355, 86968), (497, 62120), (568, 54355), (710, 43484), (994, 31060), (1420, 21742), (1553, 19880), (1988, 15530), (2485, 12424), (2840, 10871), (3106, 9940), (3976, 7765), (4970, 6212)]