17937950

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 48

約数和(自身を含む): 35154000

約数和(自身を除く): 17216050

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 89, 139, 145, 178, 278, 290, 445, 695, 725, 890, 1390, 1450, 2225, 2581, 3475, 4031, 4450, 5162, 6950, 8062, 12371, 12905, 20155, 24742, 25810, 40310, 61855, 64525, 100775, 123710, 129050, 201550, 309275, 358759, 618550, 717518, 1793795, 3587590, 8968975, 17937950]

約数ペア:

[(1, 17937950), (2, 8968975), (5, 3587590), (10, 1793795), (25, 717518), (29, 618550), (50, 358759), (58, 309275), (89, 201550), (139, 129050), (145, 123710), (178, 100775), (278, 64525), (290, 61855), (445, 40310), (695, 25810), (725, 24742), (890, 20155), (1390, 12905), (1450, 12371), (2225, 8062), (2581, 6950), (3475, 5162), (4031, 4450)]