27989780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^4$

素因数の和:75

約数の個数: 90

約数和(自身を含む): 74072754

約数和(自身を除く): 46082974

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 169, 182, 196, 245, 260, 338, 364, 455, 490, 637, 676, 845, 910, 980, 1183, 1274, 1690, 1820, 2197, 2366, 2548, 3185, 3380, 4394, 4732, 5915, 6370, 8281, 8788, 10985, 11830, 12740, 15379, 16562, 21970, 23660, 28561, 30758, 33124, 41405, 43940, 57122, 61516, 76895, 82810, 107653, 114244, 142805, 153790, 165620, 199927, 215306, 285610, 307580, 399854, 430612, 538265, 571220, 799708, 999635, 1076530, 1399489, 1999270, 2153060, 2798978, 3998540, 5597956, 6997445, 13994890, 27989780]

約数ペア:

[(1, 27989780), (2, 13994890), (4, 6997445), (5, 5597956), (7, 3998540), (10, 2798978), (13, 2153060), (14, 1999270), (20, 1399489), (26, 1076530), (28, 999635), (35, 799708), (49, 571220), (52, 538265), (65, 430612), (70, 399854), (91, 307580), (98, 285610), (130, 215306), (140, 199927), (169, 165620), (182, 153790), (196, 142805), (245, 114244), (260, 107653), (338, 82810), (364, 76895), (455, 61516), (490, 57122), (637, 43940), (676, 41405), (845, 33124), (910, 30758), (980, 28561), (1183, 23660), (1274, 21970), (1690, 16562), (1820, 15379), (2197, 12740), (2366, 11830), (2548, 10985), (3185, 8788), (3380, 8281), (4394, 6370), (4732, 5915)]