638897175

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1787}}^1$

素因数の和:2037

約数の個数: 72

約数和(自身を含む): 1314308736

約数和(自身を除く): 675411561

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 227, 315, 525, 681, 1135, 1575, 1589, 1787, 2043, 3405, 4767, 5361, 5675, 7945, 8935, 10215, 12509, 14301, 16083, 17025, 23835, 26805, 37527, 39725, 44675, 51075, 62545, 71505, 80415, 112581, 119175, 134025, 187635, 312725, 357525, 402075, 405649, 562905, 938175, 1216947, 2028245, 2814525, 2839543, 3650841, 6084735, 8518629, 10141225, 14197715, 18254205, 25555887, 30423675, 42593145, 70988575, 91271025, 127779435, 212965725, 638897175]

約数ペア:

[(1, 638897175), (3, 212965725), (5, 127779435), (7, 91271025), (9, 70988575), (15, 42593145), (21, 30423675), (25, 25555887), (35, 18254205), (45, 14197715), (63, 10141225), (75, 8518629), (105, 6084735), (175, 3650841), (225, 2839543), (227, 2814525), (315, 2028245), (525, 1216947), (681, 938175), (1135, 562905), (1575, 405649), (1589, 402075), (1787, 357525), (2043, 312725), (3405, 187635), (4767, 134025), (5361, 119175), (5675, 112581), (7945, 80415), (8935, 71505), (10215, 62545), (12509, 51075), (14301, 44675), (16083, 39725), (17025, 37527), (23835, 26805)]