51405140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:476

約数の個数: 48

約数和(自身を含む): 110657232

約数和(自身を除く): 59252092

約数列:

[1, 2, 4, 5, 10, 20, 73, 137, 146, 257, 274, 292, 365, 514, 548, 685, 730, 1028, 1285, 1370, 1460, 2570, 2740, 5140, 10001, 18761, 20002, 35209, 37522, 40004, 50005, 70418, 75044, 93805, 100010, 140836, 176045, 187610, 200020, 352090, 375220, 704180, 2570257, 5140514, 10281028, 12851285, 25702570, 51405140]

約数ペア:

[(1, 51405140), (2, 25702570), (4, 12851285), (5, 10281028), (10, 5140514), (20, 2570257), (73, 704180), (137, 375220), (146, 352090), (257, 200020), (274, 187610), (292, 176045), (365, 140836), (514, 100010), (548, 93805), (685, 75044), (730, 70418), (1028, 50005), (1285, 40004), (1370, 37522), (1460, 35209), (2570, 20002), (2740, 18761), (5140, 10001)]