209435690

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{7591}}^1$

素因数の和:7718

約数の個数: 32

約数和(自身を含む): 393569280

約数和(自身を除く): 184133590

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 445, 890, 2759, 5518, 7591, 13795, 15182, 27590, 37955, 75910, 235321, 470642, 675599, 1176605, 1351198, 2353210, 3377995, 6755990, 20943569, 41887138, 104717845, 209435690]

約数ペア:

[(1, 209435690), (2, 104717845), (5, 41887138), (10, 20943569), (31, 6755990), (62, 3377995), (89, 2353210), (155, 1351198), (178, 1176605), (310, 675599), (445, 470642), (890, 235321), (2759, 75910), (5518, 37955), (7591, 27590), (13795, 15182)]