247859660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{8191}}^1$

素因数の和:8306

約数の個数: 48

約数和(自身を含む): 557383680

約数和(自身を除く): 309524020

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1513, 1780, 3026, 6052, 7565, 8191, 15130, 16382, 30260, 32764, 40955, 81910, 139247, 163820, 278494, 556988, 696235, 728999, 1392470, 1457998, 2784940, 2915996, 3644995, 7289990, 12392983, 14579980, 24785966, 49571932, 61964915, 123929830, 247859660]

約数ペア:

[(1, 247859660), (2, 123929830), (4, 61964915), (5, 49571932), (10, 24785966), (17, 14579980), (20, 12392983), (34, 7289990), (68, 3644995), (85, 2915996), (89, 2784940), (170, 1457998), (178, 1392470), (340, 728999), (356, 696235), (445, 556988), (890, 278494), (1513, 163820), (1780, 139247), (3026, 81910), (6052, 40955), (7565, 32764), (8191, 30260), (15130, 16382)]