20282560

素因数分解:

$2^6\times 5^1\times {\mathrm{241}}^1\times {\mathrm{263}}^1$

素因数の和:521

約数の個数: 56

約数和(自身を含む): 48682656

約数和(自身を除く): 28400096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 241, 263, 320, 482, 526, 964, 1052, 1205, 1315, 1928, 2104, 2410, 2630, 3856, 4208, 4820, 5260, 7712, 8416, 9640, 10520, 15424, 16832, 19280, 21040, 38560, 42080, 63383, 77120, 84160, 126766, 253532, 316915, 507064, 633830, 1014128, 1267660, 2028256, 2535320, 4056512, 5070640, 10141280, 20282560]

約数ペア:

[(1, 20282560), (2, 10141280), (4, 5070640), (5, 4056512), (8, 2535320), (10, 2028256), (16, 1267660), (20, 1014128), (32, 633830), (40, 507064), (64, 316915), (80, 253532), (160, 126766), (241, 84160), (263, 77120), (320, 63383), (482, 42080), (526, 38560), (964, 21040), (1052, 19280), (1205, 16832), (1315, 15424), (1928, 10520), (2104, 9640), (2410, 8416), (2630, 7712), (3856, 5260), (4208, 4820)]