1893718645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:830

約数の個数: 64

約数和(自身を含む): 2892105216

約数和(自身を除く): 998386571

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 197, 259, 455, 481, 571, 985, 1295, 1379, 2405, 2561, 2855, 3367, 3997, 6895, 7289, 7423, 12805, 16835, 17927, 19985, 21127, 36445, 37115, 51023, 51961, 89635, 94757, 105635, 112487, 147889, 255115, 259805, 274651, 473785, 562435, 663299, 739445, 787409, 1373255, 1462331, 1922557, 3316495, 3937045, 4162019, 7311655, 9612785, 10236317, 20810095, 29134133, 51181585, 54106247, 145670665, 270531235, 378743729, 1893718645]

約数ペア:

[(1, 1893718645), (5, 378743729), (7, 270531235), (13, 145670665), (35, 54106247), (37, 51181585), (65, 29134133), (91, 20810095), (185, 10236317), (197, 9612785), (259, 7311655), (455, 4162019), (481, 3937045), (571, 3316495), (985, 1922557), (1295, 1462331), (1379, 1373255), (2405, 787409), (2561, 739445), (2855, 663299), (3367, 562435), (3997, 473785), (6895, 274651), (7289, 259805), (7423, 255115), (12805, 147889), (16835, 112487), (17927, 105635), (19985, 94757), (21127, 89635), (36445, 51961), (37115, 51023)]