20000332

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 54

約数和(自身を含む): 40677252

約数和(自身を除く): 20676920

約数列:

[1, 2, 4, 11, 22, 31, 43, 44, 62, 86, 121, 124, 172, 242, 341, 473, 484, 682, 946, 961, 1333, 1364, 1892, 1922, 2666, 3751, 3844, 5203, 5332, 7502, 10406, 10571, 14663, 15004, 20812, 21142, 29326, 41323, 42284, 58652, 82646, 116281, 161293, 165292, 232562, 322586, 454553, 465124, 645172, 909106, 1818212, 5000083, 10000166, 20000332]

約数ペア:

[(1, 20000332), (2, 10000166), (4, 5000083), (11, 1818212), (22, 909106), (31, 645172), (43, 465124), (44, 454553), (62, 322586), (86, 232562), (121, 165292), (124, 161293), (172, 116281), (242, 82646), (341, 58652), (473, 42284), (484, 41323), (682, 29326), (946, 21142), (961, 20812), (1333, 15004), (1364, 14663), (1892, 10571), (1922, 10406), (2666, 7502), (3751, 5332), (3844, 5203)]