38942540

素因数分解:

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

素因数の和:21426

約数の個数: 48

約数和(自身を含む): 100656192

約数和(自身を除く): 61713652

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 21397, 42794, 85588, 106985, 149779, 213970, 278161, 299558, 427940, 556322, 599116, 748895, 1112644, 1390805, 1497790, 1947127, 2781610, 2995580, 3894254, 5563220, 7788508, 9735635, 19471270, 38942540]

約数ペア:

[(1, 38942540), (2, 19471270), (4, 9735635), (5, 7788508), (7, 5563220), (10, 3894254), (13, 2995580), (14, 2781610), (20, 1947127), (26, 1497790), (28, 1390805), (35, 1112644), (52, 748895), (65, 599116), (70, 556322), (91, 427940), (130, 299558), (140, 278161), (182, 213970), (260, 149779), (364, 106985), (455, 85588), (910, 42794), (1820, 21397)]