77890540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{42797}}^1$

素因数の和:42826

約数の個数: 48

約数和(自身を含む): 201321792

約数和(自身を除く): 123431252

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, 42797, 85594, 171188, 213985, 299579, 427970, 556361, 599158, 855940, 1112722, 1198316, 1497895, 2225444, 2781805, 2995790, 3894527, 5563610, 5991580, 7789054, 11127220, 15578108, 19472635, 38945270, 77890540]

約数ペア:

[(1, 77890540), (2, 38945270), (4, 19472635), (5, 15578108), (7, 11127220), (10, 7789054), (13, 5991580), (14, 5563610), (20, 3894527), (26, 2995790), (28, 2781805), (35, 2225444), (52, 1497895), (65, 1198316), (70, 1112722), (91, 855940), (130, 599158), (140, 556361), (182, 427970), (260, 299579), (364, 213985), (455, 171188), (910, 85594), (1820, 42797)]