40245640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:502

約数の個数: 64

約数和(自身を含む): 94556160

約数和(自身を除く): 54310520

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 71, 74, 142, 148, 185, 284, 296, 355, 370, 383, 568, 710, 740, 766, 1420, 1480, 1532, 1915, 2627, 2840, 3064, 3830, 5254, 7660, 10508, 13135, 14171, 15320, 21016, 26270, 27193, 28342, 52540, 54386, 56684, 70855, 105080, 108772, 113368, 135965, 141710, 217544, 271930, 283420, 543860, 566840, 1006141, 1087720, 2012282, 4024564, 5030705, 8049128, 10061410, 20122820, 40245640]

約数ペア:

[(1, 40245640), (2, 20122820), (4, 10061410), (5, 8049128), (8, 5030705), (10, 4024564), (20, 2012282), (37, 1087720), (40, 1006141), (71, 566840), (74, 543860), (142, 283420), (148, 271930), (185, 217544), (284, 141710), (296, 135965), (355, 113368), (370, 108772), (383, 105080), (568, 70855), (710, 56684), (740, 54386), (766, 52540), (1420, 28342), (1480, 27193), (1532, 26270), (1915, 21016), (2627, 15320), (2840, 14171), (3064, 13135), (3830, 10508), (5254, 7660)]