20955176

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{151}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 45964800

約数和(自身を除く): 25009624

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 83, 88, 151, 152, 166, 209, 302, 332, 418, 604, 664, 836, 913, 1208, 1577, 1661, 1672, 1826, 2869, 3154, 3322, 3652, 5738, 6308, 6644, 7304, 11476, 12533, 12616, 13288, 17347, 22952, 25066, 31559, 34694, 50132, 63118, 69388, 100264, 126236, 137863, 138776, 238127, 252472, 275726, 476254, 551452, 952508, 1102904, 1905016, 2619397, 5238794, 10477588, 20955176]

約数ペア:

[(1, 20955176), (2, 10477588), (4, 5238794), (8, 2619397), (11, 1905016), (19, 1102904), (22, 952508), (38, 551452), (44, 476254), (76, 275726), (83, 252472), (88, 238127), (151, 138776), (152, 137863), (166, 126236), (209, 100264), (302, 69388), (332, 63118), (418, 50132), (604, 34694), (664, 31559), (836, 25066), (913, 22952), (1208, 17347), (1577, 13288), (1661, 12616), (1672, 12533), (1826, 11476), (2869, 7304), (3154, 6644), (3322, 6308), (3652, 5738)]