1309720

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 2980800

約数和(自身を除く): 1671080

約数列:

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

約数ペア:

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