26187520

素因数分解:

$2^8\times 5^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 64386000

約数和(自身を除く): 38198480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 256, 320, 328, 410, 499, 640, 656, 820, 998, 1280, 1312, 1640, 1996, 2495, 2624, 3280, 3992, 4990, 5248, 6560, 7984, 9980, 10496, 13120, 15968, 19960, 20459, 26240, 31936, 39920, 40918, 52480, 63872, 79840, 81836, 102295, 127744, 159680, 163672, 204590, 319360, 327344, 409180, 638720, 654688, 818360, 1309376, 1636720, 2618752, 3273440, 5237504, 6546880, 13093760, 26187520]

約数ペア:

[(1, 26187520), (2, 13093760), (4, 6546880), (5, 5237504), (8, 3273440), (10, 2618752), (16, 1636720), (20, 1309376), (32, 818360), (40, 654688), (41, 638720), (64, 409180), (80, 327344), (82, 319360), (128, 204590), (160, 163672), (164, 159680), (205, 127744), (256, 102295), (320, 81836), (328, 79840), (410, 63872), (499, 52480), (640, 40918), (656, 39920), (820, 31936), (998, 26240), (1280, 20459), (1312, 19960), (1640, 15968), (1996, 13120), (2495, 10496), (2624, 9980), (3280, 7984), (3992, 6560), (4990, 5248)]