388901080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3701}}^1$

素因数の和:3820

約数の個数: 64

約数和(自身を含む): 911580480

約数和(自身を除く): 522679400

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 296, 355, 370, 568, 710, 740, 1420, 1480, 2627, 2840, 3701, 5254, 7402, 10508, 13135, 14804, 18505, 21016, 26270, 29608, 37010, 52540, 74020, 105080, 136937, 148040, 262771, 273874, 525542, 547748, 684685, 1051084, 1095496, 1313855, 1369370, 2102168, 2627710, 2738740, 5255420, 5477480, 9722527, 10510840, 19445054, 38890108, 48612635, 77780216, 97225270, 194450540, 388901080]

約数ペア:

[(1, 388901080), (2, 194450540), (4, 97225270), (5, 77780216), (8, 48612635), (10, 38890108), (20, 19445054), (37, 10510840), (40, 9722527), (71, 5477480), (74, 5255420), (142, 2738740), (148, 2627710), (185, 2102168), (284, 1369370), (296, 1313855), (355, 1095496), (370, 1051084), (568, 684685), (710, 547748), (740, 525542), (1420, 273874), (1480, 262771), (2627, 148040), (2840, 136937), (3701, 105080), (5254, 74020), (7402, 52540), (10508, 37010), (13135, 29608), (14804, 26270), (18505, 21016)]