20352160

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 48498912

約数和(自身を除く): 28146752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 971, 1048, 1310, 1942, 2096, 2620, 3884, 4192, 4855, 5240, 7768, 9710, 10480, 15536, 19420, 20960, 31072, 38840, 77680, 127201, 155360, 254402, 508804, 636005, 1017608, 1272010, 2035216, 2544020, 4070432, 5088040, 10176080, 20352160]

約数ペア:

[(1, 20352160), (2, 10176080), (4, 5088040), (5, 4070432), (8, 2544020), (10, 2035216), (16, 1272010), (20, 1017608), (32, 636005), (40, 508804), (80, 254402), (131, 155360), (160, 127201), (262, 77680), (524, 38840), (655, 31072), (971, 20960), (1048, 19420), (1310, 15536), (1942, 10480), (2096, 9710), (2620, 7768), (3884, 5240), (4192, 4855)]