20338160

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6871}}^1$

素因数の和:6921

約数の個数: 40

約数和(自身を含む): 48571296

約数和(自身を除く): 28233136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6871, 13742, 27484, 34355, 54968, 68710, 109936, 137420, 254227, 274840, 508454, 549680, 1016908, 1271135, 2033816, 2542270, 4067632, 5084540, 10169080, 20338160]

約数ペア:

[(1, 20338160), (2, 10169080), (4, 5084540), (5, 4067632), (8, 2542270), (10, 2033816), (16, 1271135), (20, 1016908), (37, 549680), (40, 508454), (74, 274840), (80, 254227), (148, 137420), (185, 109936), (296, 68710), (370, 54968), (592, 34355), (740, 27484), (1480, 13742), (2960, 6871)]