77885080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21397}}^1$

素因数の和:21428

約数の個数: 64

約数和(自身を含む): 215691840

約数和(自身を除く): 137806760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 21397, 42794, 85588, 106985, 149779, 171176, 213970, 278161, 299558, 427940, 556322, 599116, 748895, 855880, 1112644, 1198232, 1390805, 1497790, 1947127, 2225288, 2781610, 2995580, 3894254, 5563220, 5991160, 7788508, 9735635, 11126440, 15577016, 19471270, 38942540, 77885080]

約数ペア:

[(1, 77885080), (2, 38942540), (4, 19471270), (5, 15577016), (7, 11126440), (8, 9735635), (10, 7788508), (13, 5991160), (14, 5563220), (20, 3894254), (26, 2995580), (28, 2781610), (35, 2225288), (40, 1947127), (52, 1497790), (56, 1390805), (65, 1198232), (70, 1112644), (91, 855880), (104, 748895), (130, 599116), (140, 556322), (182, 427940), (260, 299558), (280, 278161), (364, 213970), (455, 171176), (520, 149779), (728, 106985), (910, 85588), (1820, 42794), (3640, 21397)]