13765480

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 32503680

約数和(自身を除く): 18738200

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 131, 142, 148, 185, 262, 284, 296, 355, 370, 524, 568, 655, 710, 740, 1048, 1310, 1420, 1480, 2620, 2627, 2840, 4847, 5240, 5254, 9301, 9694, 10508, 13135, 18602, 19388, 21016, 24235, 26270, 37204, 38776, 46505, 48470, 52540, 74408, 93010, 96940, 105080, 186020, 193880, 344137, 372040, 688274, 1376548, 1720685, 2753096, 3441370, 6882740, 13765480]

約数ペア:

[(1, 13765480), (2, 6882740), (4, 3441370), (5, 2753096), (8, 1720685), (10, 1376548), (20, 688274), (37, 372040), (40, 344137), (71, 193880), (74, 186020), (131, 105080), (142, 96940), (148, 93010), (185, 74408), (262, 52540), (284, 48470), (296, 46505), (355, 38776), (370, 37204), (524, 26270), (568, 24235), (655, 21016), (710, 19388), (740, 18602), (1048, 13135), (1310, 10508), (1420, 9694), (1480, 9301), (2620, 5254), (2627, 5240), (2840, 4847)]