128512850

素因数分解:

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

素因数の和:479

約数の個数: 48

約数和(自身を含む): 245026728

約数和(自身を除く): 116513878

約数列:

[1, 2, 5, 10, 25, 50, 73, 137, 146, 257, 274, 365, 514, 685, 730, 1285, 1370, 1825, 2570, 3425, 3650, 6425, 6850, 10001, 12850, 18761, 20002, 35209, 37522, 50005, 70418, 93805, 100010, 176045, 187610, 250025, 352090, 469025, 500050, 880225, 938050, 1760450, 2570257, 5140514, 12851285, 25702570, 64256425, 128512850]

約数ペア:

[(1, 128512850), (2, 64256425), (5, 25702570), (10, 12851285), (25, 5140514), (50, 2570257), (73, 1760450), (137, 938050), (146, 880225), (257, 500050), (274, 469025), (365, 352090), (514, 250025), (685, 187610), (730, 176045), (1285, 100010), (1370, 93805), (1825, 70418), (2570, 50005), (3425, 37522), (3650, 35209), (6425, 20002), (6850, 18761), (10001, 12850)]