20726080

素因数分解:

$2^6\times 5^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:527

約数の個数: 56

約数和(自身を含む): 49743360

約数和(自身を除く): 29017280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 239, 271, 320, 478, 542, 956, 1084, 1195, 1355, 1912, 2168, 2390, 2710, 3824, 4336, 4780, 5420, 7648, 8672, 9560, 10840, 15296, 17344, 19120, 21680, 38240, 43360, 64769, 76480, 86720, 129538, 259076, 323845, 518152, 647690, 1036304, 1295380, 2072608, 2590760, 4145216, 5181520, 10363040, 20726080]

約数ペア:

[(1, 20726080), (2, 10363040), (4, 5181520), (5, 4145216), (8, 2590760), (10, 2072608), (16, 1295380), (20, 1036304), (32, 647690), (40, 518152), (64, 323845), (80, 259076), (160, 129538), (239, 86720), (271, 76480), (320, 64769), (478, 43360), (542, 38240), (956, 21680), (1084, 19120), (1195, 17344), (1355, 15296), (1912, 10840), (2168, 9560), (2390, 8672), (2710, 7648), (3824, 5420), (4336, 4780)]