20058740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 25664140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 179, 260, 358, 431, 716, 862, 895, 1724, 1790, 2155, 2327, 3580, 4310, 4654, 5603, 8620, 9308, 11206, 11635, 22412, 23270, 28015, 46540, 56030, 77149, 112060, 154298, 308596, 385745, 771490, 1002937, 1542980, 2005874, 4011748, 5014685, 10029370, 20058740]

約数ペア:

[(1, 20058740), (2, 10029370), (4, 5014685), (5, 4011748), (10, 2005874), (13, 1542980), (20, 1002937), (26, 771490), (52, 385745), (65, 308596), (130, 154298), (179, 112060), (260, 77149), (358, 56030), (431, 46540), (716, 28015), (862, 23270), (895, 22412), (1724, 11635), (1790, 11206), (2155, 9308), (2327, 8620), (3580, 5603), (4310, 4654)]