20386696

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 44712000

約数和(自身を除く): 24325304

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 89, 137, 152, 178, 209, 274, 356, 418, 548, 712, 836, 979, 1096, 1507, 1672, 1691, 1958, 2603, 3014, 3382, 3916, 5206, 6028, 6764, 7832, 10412, 12056, 12193, 13528, 18601, 20824, 24386, 28633, 37202, 48772, 57266, 74404, 97544, 114532, 134123, 148808, 229064, 231667, 268246, 463334, 536492, 926668, 1072984, 1853336, 2548337, 5096674, 10193348, 20386696]

約数ペア:

[(1, 20386696), (2, 10193348), (4, 5096674), (8, 2548337), (11, 1853336), (19, 1072984), (22, 926668), (38, 536492), (44, 463334), (76, 268246), (88, 231667), (89, 229064), (137, 148808), (152, 134123), (178, 114532), (209, 97544), (274, 74404), (356, 57266), (418, 48772), (548, 37202), (712, 28633), (836, 24386), (979, 20824), (1096, 18601), (1507, 13528), (1672, 12193), (1691, 12056), (1958, 10412), (2603, 7832), (3014, 6764), (3382, 6028), (3916, 5206)]