2781350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 6093360

約数和(自身を除く): 3312010

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 50, 55, 65, 110, 130, 143, 275, 286, 325, 389, 550, 650, 715, 778, 1430, 1945, 3575, 3890, 4279, 5057, 7150, 8558, 9725, 10114, 19450, 21395, 25285, 42790, 50570, 55627, 106975, 111254, 126425, 213950, 252850, 278135, 556270, 1390675, 2781350]

約数ペア:

[(1, 2781350), (2, 1390675), (5, 556270), (10, 278135), (11, 252850), (13, 213950), (22, 126425), (25, 111254), (26, 106975), (50, 55627), (55, 50570), (65, 42790), (110, 25285), (130, 21395), (143, 19450), (275, 10114), (286, 9725), (325, 8558), (389, 7150), (550, 5057), (650, 4279), (715, 3890), (778, 3575), (1430, 1945)]