2619440

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 6160320

約数和(自身を除く): 3540880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 239, 274, 478, 548, 685, 956, 1096, 1195, 1370, 1912, 2192, 2390, 2740, 3824, 4780, 5480, 9560, 10960, 19120, 32743, 65486, 130972, 163715, 261944, 327430, 523888, 654860, 1309720, 2619440]

約数ペア:

[(1, 2619440), (2, 1309720), (4, 654860), (5, 523888), (8, 327430), (10, 261944), (16, 163715), (20, 130972), (40, 65486), (80, 32743), (137, 19120), (239, 10960), (274, 9560), (478, 5480), (548, 4780), (685, 3824), (956, 2740), (1096, 2390), (1195, 2192), (1370, 1912)]